RobotVRM vs Sumomo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RobotVRM
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This app transforms your smartphone into an AI robot with VRM characters. Purchase the "RobotVRM Car" hardware to make VRM characters move autonomously based on AI decisions. RobotVRM Car https://shop.robotvrm.com/products/robotvrm-car Multiple movements are available for you to choose from. New movements and characters are regularly released and updated according to the latest AI developments! You can also customize characters and backgrounds! ****** IMPORTANT ****** This app requires separate OpenAI or Anthropic API keys. * Long-term usage may incur high API costs. Please refer to the RobotVRM list overview in the app for cost estimates. ****** IMPORTANT ****** RobotVRM founder saten's X account https://x.com/saten_work This app is based on Nike-chan's aituber-kit (MIT License era, before 2024/9/25), which was built upon pixiv's open-source ChatVRM. Nike-chan's X account https://x.com/tegnike aituber-kit (MIT License era, before 2024/9/25) https://github.com/tegnike/aituber-kit/tree/5c1be3dae7e38871839f37857e550b8f7387f718 ChatVRM https://github.com/pixiv/ChatVRM
Sumomo
This app allows users to capture photos and videos using VRM character models. It supports VRMA animations, enabling dynamic content creation for VTubers. Only VRM 0.x versions are currently compatible.
- Load VRM character models
- Capture photos and videos
- Support for VRMA animations
- VRM 0.x version compatibility
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A VTuber camera app. Load VRM character modeling files to take photos and videos! VRMA animations are also supported! [Note] Only VRM 0.x versions are supported.
Screenshots
Verdict
The clearest difference is in-app purchases: RobotVRM at none against Sumomo's 2. RobotVRM also leads on iOS requirement (14.0 vs 16.0). On price, update cadence, ads and device support 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. Sumomo sells 2 one-off in-app purchases. RobotVRM asks for nothing beyond the download.
RobotVRM ships an update every 4 days, Sumomo every 6 days. The most recent releases landed on September 12, 2026 and September 4, 2026 respectively.
| Parameter | RobotVRM | Sumomo |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.4 (8 ratings) — better |
| Positive reviews | — | 12.5% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | Every 4 days — better | Every 6 days |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 8 MB | 30 MB |
| Age rating | 12+ | 4+ |
| Developer | RobotVRM | AppMadang |
In-app purchases
RobotVRM
No in-app purchases
Sumomo
- No Ads$2.99
- Premium Quality$3.99
