# Trial&Error vs SmallStepper

The clearest difference is ads: SmallStepper at none against Trial&Error's shown. Trial&Error's advantage is update cadence (weekly vs every 4 weeks) and iOS requirement (15.4 vs 18.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Trial&Error sells 2 in-app purchases, starting at $0.49 per month and SmallStepper sells 2 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

Trial&Error ships an update weekly, SmallStepper every 4 weeks. The most recent releases landed on September 13, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Trial&Error | SmallStepper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 4 weeks |
| Size | 17 MB | 52 MB |
| Requires iOS | **15.4** | 18.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Naruhito Ozawa](https://appshunter.io/developer/1166703594) | [Mariko Morita](https://appshunter.io/developer/1813157726) |

## What reviewers say

### Trial&Error

[App page](https://appshunter.io/ios/app/trial-and-error/id1612021152)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly fee | $0.49 | per month |
| PremiumPlan(onetime-purchase) | $2.99 | one-time |


### SmallStepper

[App page](https://appshunter.io/ios/app/smallstepper-focus-on-this/id6745612474)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmallStepperマンスリーサポーター | $0.49 | per month |
| ライフタイムサポーター | $9.99 | one-time |


## Frequently asked questions

### Is Trial&Error free?

Trial&Error is free to download, with in-app purchases available.

### Is SmallStepper free?

SmallStepper is free to download, with in-app purchases available.

### Do Trial&Error or SmallStepper have ads?

Trial&Error shows ads; SmallStepper does not.

### Which is updated more often, Trial&Error or SmallStepper?

Trial&Error ships an update weekly, and SmallStepper every 4 weeks. Most recently, Trial&Error was updated on September 13, 2026 and SmallStepper on September 11, 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.*