Synctrain vs Quartet by Affirmi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synctrain
Securely synchronize files and folders between your devices. Stream audio and video directly from other devices. Manage file sharing permissions to control access to your data.
- Secure file synchronization
- Full folder synchronization
- Specific file selection
- Audio and video streaming
- Cross-device file mirroring
- Customizable sharing permissions
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With Synctrain you can securely synchronize files with other devices that have Syncthing installed. You can choose to synchronize full folders, or choose specific files. With Synctrain you can also stream audio and video files from other devices. When you synchronize files, all changes, including deleting files, also happen on your other devices. Do not use Synctrain for back-up purposes, and always keep a back-up of your data. You decide with which devices you share which files. This also means the app makers cannot help you access or recover any lost files. This app is powered by Syncthing. This app is however not associated with or endorsed by Syncthing nor its developers. Please do not expect support from the Syncthing developers. Instead, contact the maker of this app if you have questions.
Quartet by Affirmi
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Ask once. Four models answer at the same time, and Quartet gives you the one answer they agree on, with the places they split underneath. Type a question. Four seats light up as GPT, Gemini, Claude and Qwen answer in parallel. When they finish, Quartet writes the quorum: the answer they support together, and a short list of where they disagree, so you can see it rather than guess it. Every thread is remembered. Open it later, ask a follow up, and the panel picks up where it left off. Turn MEMORY off on the ACCOUNT screen and nothing is kept between threads. A new account starts with a hundred credits at no charge. A question costs a few. No keys to paste, no setup, one username. Made for people who already paste the same question into several chatbots and compare by hand. SUBSCRIPTION AND CREDITS Quartet Pro is an auto-renewable subscription at $9.99 per month with 600 credits each month, billed to your Apple ID. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel it in your App Store account settings. Credit packs are one-time purchases: 500 credits for $4.99 and 1500 credits for $12.99. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://quartet.affirmi.tv/privacy
Screenshots
Verdict
The clearest difference is update cadence: Quartet by Affirmi at daily against Synctrain's every 6 weeks. Synctrain's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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.
Synctrain ships an update every 6 weeks, Quartet by Affirmi daily. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.
| Parameter | Synctrain | Quartet by Affirmi |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (123 ratings) — better | — |
| Positive reviews | 89.5% of reviews | — |
| Number of ratings | 123 — better | — |
| Update frequency | Every 6 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 33 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | T-Shaped | Affirmi Inc. |
Bugs and requests
Synctrain
Reported bugs
2 issues- Occasional app crashes
- Sync delays on some devices
Requested features
2 requests- Direct photo/video sync to remote devices
- Faster initial connection to server
Quartet by Affirmi
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Synctrain
No in-app purchases
Quartet by Affirmi
No in-app purchases
Questions
Is Synctrain free?
Is Quartet by Affirmi free?
Do Synctrain or Quartet by Affirmi have ads?
Which is updated more often, Synctrain or Quartet by Affirmi?
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