# TrainTool vs Knowingo

The clearest difference is iOS requirement: Knowingo at 12.0 against TrainTool's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TrainTool | Knowingo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowingo/id1020590857/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 29 MB | 59 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TrainTool](https://appshunter.io/developer/821596020) | [Knowingo B.V.](https://appshunter.io/developer/1816915376) |

## What reviewers say

### TrainTool

[App page](https://appshunter.io/ios/app/traintool/id821596017)

**In-app purchases:** none


### Knowingo

[App page](https://appshunter.io/ios/app/knowingo/id1020590857)

This app transforms learning into an engaging experience with quick, trivia-style quizzes. Earn experience, level up, and gain titles by answering questions accurately and studying materials. Daily challenges are provided to enhance knowledge and earn rewards, with certificates available to prove mastery.

**Highlights:** Trivia-style quizzes, Daily challenges, Experience and leveling system, Earn titles and rewards, Study materials, Mastery certificates

**In-app purchases:** none


## Frequently asked questions

### Is TrainTool free?

TrainTool is free to download, with no in-app purchases.

### Is Knowingo free?

Knowingo is free to download, with no in-app purchases.

### Do TrainTool or Knowingo have ads?

Neither TrainTool nor Knowingo shows ads.

### Which is updated more often, TrainTool or Knowingo?

TrainTool ships an update every 3 weeks, and Knowingo every 3 weeks. Most recently, TrainTool was updated on October 6, 2026 and Knowingo on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*