Exhibit 99.1

AGREEMENT AND GENERAL RELEASE

This Agreement and General Release (“Agreement”) is made and entered into by and between Smith Micro Software, Inc. (“Employer”) on the one hand, and Daniel Rawlings, his or her heirs, executors, administrators, successors and assigns (collectively, “Employee”) on the other. Employer and Employee agree that:

1. Last Day of Employment. Employee’s last day of employment was May 9, 2014.

2. Consideration.

(a) In consideration for signing this Agreement and compliance with the promises made herein and so long as Employee does not revoke this Agreement as provided for in paragraph 6, below, Employer agrees to pay Employee a lump sum amount of Sixty Thousand Five Hundred Seventy Six Dollars and 93 Cents ($60,576.93) (the “Severance Pay”), less lawful deductions. Twenty Six Thousand Nine Hundred Twenty Three Dollars and 8 Cents ($26,923.08) of the Severance Pay is attributable to a pro-rata share of the Q2 bonus that Executive may have been eligible to receive had he remained employed the entire quarter and assuming that the Company met its goals; Executive acknowledges that given the Employer’s fiscal year to date performance that Q2 bonuses may not be paid by Employer and that payment of a pro-rata share amount represents the compromise of a potentially disputed wage claim. Payment of the Severance Pay shall be made within fourteen (14) calendar days after the Employer’s receipt of an original of this Agreement signed by Employee. This payment will be sent to Employee’s last known residence address.

(b) Employer also agrees that, if Employee properly and timely elects to continue medical and dental coverage under the Cigna plan in accordance with the continuation requirements of COBRA, Employer shall reimburse the cost of the premium for such coverage for up to four (4) months beginning June 1, 2014 and ending on September 30, 2014. Thereafter, Employee shall be entitled to elect to continue such COBRA coverage for the remainder of the COBRA period, at Employee’s own expense, subject to the provisions of the American Recovery and Reinvestment Act of 2009.

(c) A total of 125,000 restricted shares will be accelerated to the termination date. These accelerated shares are not eligible to receive a tax gross-up and will be subject to the share withholding procedure similar to Employee’s previous stock vesting transactions.

3. No Consideration Absent Execution of this Agreement. Employee understands and agrees that Employee would not receive the amount specified in section 2 above, except for Employee’s execution of this Agreement and the fulfillment of the promises contained in this Agreement.

4. Time to Consider Agreement; Consult With An Attorney. Employee has forty-five (45) calendar days to consider and execute this Agreement. The Agreement shall be deemed withdrawn if Employee does not sign it within the 45-day consideration period. Because Employee waives important rights, including the right to sue for discrimination based upon age, by signing this Agreement, Employer advises Employee to consult with an attorney about the meaning and effect of this Agreement before signing it.

5. Right to Revoke Agreement. Employee has the right to revoke this Agreement within seven (7) calendar days after signing it. If the seventh day after signing this Agreement is a Saturday, Sunday or legal holiday in the State of California, the revocation period shall extend to the next day that is not a Saturday, Sunday or legal holiday in the State of California. To revoke this Agreement, Employee must personally deliver or send via certified or overnight mail a written notice of revocation to: Diane Gulling, Smith Micro Software, Inc. 51 Columbia, Aliso Viejo, CA 92656.

6. Eligibility and Selection Criteria/Applicable Data.

(a) Eligibility and Selection Criteria. In connection with Employer’s May 2014 Reduction In Force, all United States operations and employees were reviewed for possible consolidation or position eliminations. Executive level employees who were selected for layoff as part of the May 2014 Reduction in Force are eligible for the following severance benefits conditioned upon the employee signing a general release in a form acceptable to Employer: (i) Seven weeks of severance, which includes $26,923.08 attributable to Q2 bonuses; (ii) up to four (4) months of COBRA reimbursement; and (iii) acceleration of restricted stock shares to the termination date. Employer evaluated all employees for possible layoff based upon the following criteria: whether the position was revenue generating; employee skill set; experience; ability to perform multiple tasks or jobs; type and amount of work presently needed and projected for the future; performance; whether the work could be performed by an employee working at a different facility, and all other things being equal, tenure with Employer.

(b) Applicable Data. Attached as Exhibit A to this Agreement is a list of all U.S. employees by location, job title and age who were selected for layoff and eligible for the severance benefits so long as they signed a release in a form acceptable to Employer. Attached as Exhibit B is a list of all U.S. employees by location, job title and age who were not selected for layoff and therefore were not eligible for severance benefits.

7. General Release of Claims.

(a) General Release of All Claims. Employee knowingly and voluntarily releases and forever discharges Employer, its parent corporation, affiliates, subsidiaries, divisions, predecessors, insurers, successors and assigns, and their current and former employees, attorneys, officers, directors and agents thereof both individually and in their business capacities (collectively, “Releasees”) of and from any and all claims, known and unknown, asserted or unasserted, which Employee has or may have against Releasees as of the date of execution of this Agreement, including, but not limited to, any alleged violation of:

(b) Claims Not Released. Employee is not waiving any rights he/she may have to: (i) his/her own vested accrued employee benefits under the Employer’s health, welfare, or retirement benefit plans as of the Separation Date; (ii) benefits and/or the right to seek benefits under applicable workers’ compensation and/or unemployment compensation statutes; (iii) pursue claims which by law cannot be waived by signing this Agreement; (iv) enforce this Agreement; and/or (v) challenge the validity of this Agreement.

(c) Governmental Agencies. Nothing in this Agreement prohibits or prevents Employee from filing a charge with or participating, testifying, or assisting in any investigation, hearing, or other proceeding before any federal, state, or local government agency. However, to the maximum extent permitted by law, Employee agrees that if such an administrative claim is made, Employee shall not be entitled to recover any individual monetary relief or other individual remedies.

(d) Collective/Class Action Waiver. If any claim is not subject to release, to the extent permitted by law, Employee waives any right or ability to be a class or collective action representative or to otherwise participate in any putative or certified class, collective or multi-party action or proceeding based on such a claim in which Employer or any other Releasee identified in this Agreement is a party.

8. Knowing Waiver of Claims. Employee understands and agrees that Employee may later discover facts different from or in addition to those Employee now knows or believes to be true in respect to the claims, demands, damages, liabilities, actions or causes of action herein released, and Employee agrees that the General Release of All Claims is and will remain in effect in all respects as a complete and general release as to the matters to be released, notwithstanding any such different and additional facts.

9. Waiver of Civil Code Section 1542. Employee hereby waives the provisions of section 1542 of the California Civil Code, which provides as follows:

10. Affirmations. Employee affirms that Employee: (a) has not filed, caused to be filed or presently is a party to any claim against Employer in any forum or form; (b) has been paid all compensation, wages, bonuses, commissions, stock, stock options and/or benefits to which Employee may be entitled, and that no other compensation, wages, bonuses, commissions, stock, stock options and/or benefits are due to Employee, except as provided in this Agreement; (c) has no known workplace injuries or occupational diseases; (d) has been provided and/or has not been denied any leave requested under the federal Family and Medical Leave Act or any applicable state leave law; (e) has received any business expenses required to be reimbursed through the date of this Agreement; (f) has returned all of Smith Micro Software, Inc.’s property, documents, and/or any confidential information in Employee’s possession or control; and (g) is in possession of all of Employee’s personal property that Employee had at Smith Micro Software, Inc.’s premises and that Smith Micro Software, Inc. is not in possession of any of Employee’s personal property. In addition, Employee affirms that he has ongoing reporting requirements to the Securities and Exchange Commission pursuant to Section 16 of the Securities and Exchange Act of 1934. Employee agrees to observe and comply with these reporting requirements after separation.

11. Compromise of Disputed Wage Claim. Employee acknowledges that Employer may not pay Q2 bonuses, that there is not guarantee of him receiving any Q2 bonus and that the consideration described above includes an amount intended to compensate him for any claim he may have to all or a pro-rata share of a Q2 bonus should such bonuses be paid. Employee therefore expressly agrees that by signing this Agreement he waives and releases any claim he has to Q2 bonus payments and that such a waiver and release is a release of a disputed wage claim.

12. Confidentiality. Employee agrees not to disclose the existence or substance of this Agreement, except to Employee’s spouse, tax advisor and/or an attorney with whom Employee chooses to consult regarding this Agreement, and/or to any federal, state or local government agency.

13. Governing Law and Interpretation. This Agreement will be governed and conformed in accordance with the laws of the state of California without regard to its conflict of laws provision. In the event the Employee or Employer breaches any provision of this Agreement, Employee and Employer affirm that either may institute an action specifically to enforce any term or terms of this Agreement and/or seek any damages for breach. Should any provision of this Agreement, other than the general release language, be declared illegal or

unenforceable by any court of competent jurisdiction and cannot be modified to be enforceable, such provision will immediately become null and void, leaving the remainder of this Agreement in full force and effect. Nothing in this Agreement is intended to waive or release any claims arising out of a breach of this Agreement, and such claims are expressly omitted from the release in this Agreement.

14. No Admission of Wrongdoing. Employer and Employee agree that neither this Agreement nor the furnishing of the consideration for this Agreement shall be deemed or construed at any time for any purpose as an admission of wrongdoing by Releasees or evidence of any liability or unlawful conduct of any kind.

15. Amendment. This Agreement may not be modified, altered or changed, except in writing and signed by both parties wherein specific reference is made to this Agreement.

16. Entire Agreement. This Agreement sets forth the entire agreement between Employer and Employee, and fully supersedes any prior agreements or understandings between them except for the following agreements and obligations entered into between Employer and Employee: (a) Mutual Agreement to Arbitrate; (b) Proprietary Information & Inventions Agreement; and (c) the obligations set forth in the Insider Trading Policy. Employee acknowledges that Employee has not relied on any representations, promises or agreements of any kind made to her in connection with Employee’s decision to accept this Agreement, except for those set forth in this Agreement.

EMPLOYEE IS ADVISED THAT EMPLOYEE HAS UP TO FORTY-FIVE (45) CALENDAR DAYS TO CONSIDER THIS AGREEMENT. EMPLOYEE IS ADVISED TO CONSULT WITH AN ATTORNEY PRIOR TO SIGNING THIS AGREEMENT.

EMPLOYEE AGREES THAT ANY MODIFICATIONS, MATERIAL OR OTHERWISE, MADE TO THIS AGREEMENT DO NOT RESTART OR AFFECT IN ANY MANNER THE ORIGINAL UP TO FORTY-FIVE (45) CALENDAR DAY CONSIDERATION PERIOD.

EMPLOYEE FREELY AND KNOWINGLY, AND AFTER DUE CONSIDERATION, ENTERS INTO THIS AGREEMENT INTENDING TO WAIVE, SETTLE AND RELEASE ALL CLAIMS EMPLOYEE HAS OR MIGHT HAVE AGAINST RELEASEES.

The parties knowingly and voluntarily sign this Agreement and General Release as of the date(s) set forth below:

EXHIBIT A

EXHIBIT B