Envoy Mobility vs Sumn
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Envoy Mobility
This service offers electric car sharing for effortless mobility. Access a vehicle when needed without the burdens of ownership like payments, insurance, or maintenance. Ideal for apartment, office, or hotel residents seeking convenient transportation.
- Electric car sharing
- On-demand vehicle access
- No ownership costs
- Convenient for residents
- Simple transportation solution
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The goal of Envoy's electric car sharing service is total simplicity and complete mobility. When you need a car, it’s ready for you. When you don’t need it, you don’t have to think about it. Imagine no car payments, gas purchases, insurance payments, maintenance costs, or car cleaning. If you live, work, or stay in an apartment, office building, or hotel, Envoy's electric vehicle car sharing service may be perfect for your lifestyle. Just a sweet ride to get you where you want to go whenever you want it.
Sumn
This electric car-sharing app connects you with vehicles in your community for on-demand use. Easily book, drive, and control your reserved EV, making car-free living convenient and affordable. Enjoy free charging and included insurance for a seamless experience.
- On-demand EV booking
- Digital car controls
- Free charging
- Included insurance
- Trip history
- Vehicle issue reporting
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Sumn is an electric car-sharing platform built for communities that enables you to easily book & drive an EV on-demand. Through the app, you can join your Sumn community, browse through available vehicles, reserve & go! Sumn makes it convenient, reliable, and affordable to live car-free. Charging is free and you're covered with insurance when you drive! With our app, you have full control of your Tesla during your reservation. You can even turn on the A/C before you get into your car! App Features: - Digital car controls - View trip history - Rate & leave trip feedback - Report vehicle issues - Live car-free! Getting started is easy: 1) Download the app 2) Sign up 3) Get approved as a driver 4) Join your community, unlock, & start driving!
Screenshots
Verdict
The clearest difference is review sentiment: Sumn at 100% against Envoy Mobility's 41%. Sumn also leads on rating (4.4 vs 2.9) and monetization model (free vs free with in-app purchases). Envoy Mobility's advantage is ratings volume (60 vs 13). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sumn holds the better App Store score, 4.4 against 2.9. Both are backed by a comparable volume of ratings — 60 and 13 respectively. Written reviews point the same way: 41% of Envoy Mobility's written reviews are positive against 100% of Sumn's.
Envoy Mobility ships an update monthly, Sumn every 3 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | Envoy Mobility | Sumn |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (60 ratings) | 4.4 (13 ratings) — better |
| Positive reviews | 40.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 60 — better | 13 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 62 MB | 72 MB |
| Age rating | 4+ | 4+ |
| Developer | Envoy Technologies Inc | SUMN, Inc. |
Customer experience
Envoy Mobility
Sumn
Bugs and requests
Envoy Mobility
Reported bugs
4 issues- App crashes and freezes during use
- Issues with identity verification and account setup
- Inability to start or end rides through the app
- Incorrect vehicle information and availability
Requested features
4 requests- Calendar view for vehicle availability
- Ability to view and manage multiple reservations
- Improved connectivity and Bluetooth integration
- More transparent pricing and billing information
Sumn
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Envoy Mobility
No in-app purchases
Sumn
No in-app purchases
