OperMain Tool vs Chimege Sonur
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
OperMain Tool
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The operation and maintenance management tools for shared electric vehicles can easily obtain vehicle data in their own operating areas, and can control the vehicle's power exchange, monitoring and other operations. Manage vehicles easily and conveniently
Chimege Sonur
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Chimege is a Mongolian text-synthesizer engine. This app adds a compatibility layer between Chimege and Apple VoiceOver for the people who visually impaired and speak Mongolian. Voice over does not currently support Mongolian, so we have included it in Russian. When setting up, go to Voice over's speech menu, click on add new language and select Russian language. After that, select Sonur on Russian language. To read alphanumeric and common characters set rotor language as Russian.
Screenshots
Verdict
The clearest difference is update cadence: OperMain Tool at monthly against Chimege Sonur's every 4 months. OperMain Tool also leads on iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
OperMain Tool ships an update monthly, Chimege Sonur every 4 months. The most recent releases landed on June 20, 2026 and August 13, 2026 respectively.
| Parameter | OperMain Tool | Chimege Sonur |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly β better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, Mac β better |
| Requires iOS | 12.0 β better | 16.0 |
| Further details β not scored | ||
| Size | 75 MB | 185 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen TBIT Technology Co., Ltd. | Bolorsoft LLC |
In-app purchases
OperMain Tool
No in-app purchases
Chimege Sonur
No in-app purchases
