# Trial&Error vs inkling

The clearest difference is update cadence: Trial&Error at weekly against inkling's fortnightly. Trial&Error also leads on iOS requirement (15.4 vs 18.0). On price, ads, 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 inkling sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Trial&Error ships an update weekly, inkling fortnightly. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Trial&Error | inkling |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Size | 17 MB | 7 MB |
| Requires iOS | **15.4** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Naruhito Ozawa](https://appshunter.io/developer/1166703594) | [Ke Tong](https://appshunter.io/developer/6773978273) |

## 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 |


### inkling

[App page](https://appshunter.io/ios/app/inkling-dream-journal-notes/id6787896389)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Trial&Error free?

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

### Is inkling free?

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

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

Both Trial&Error and inkling show ads.

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

Trial&Error ships an update weekly, and inkling fortnightly. Most recently, Trial&Error was updated on October 17, 2026 and inkling on October 25, 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.*