# Prism vs Dotty

The clearest difference is update cadence: Prism at every 5 days against Dotty's monthly. Dotty's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Prism sells 2 in-app purchases, starting at $4.99 per month and Dotty sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Prism ships an update every 5 days, Dotty monthly. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Prism | Dotty |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Size | 15 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Iurii Istomin](https://appshunter.io/developer/1561482608) | [Mohamed Smina](https://appshunter.io/developer/1438684403) |

## What reviewers say

### Prism

[App page](https://appshunter.io/ios/app/prism-visual-day-planner/id6751152159)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prism Pro (Monthly) | $4.99 | per month |
| Prism Pro (Annual) | $34.99 | per year |


### Dotty

[App page](https://appshunter.io/ios/app/dotty-habit-and-task-planner/id6775509474)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Support | $1.99 | one-time |
| Generous Support | $4.99 | one-time |
| Big Support | $9.99 | one-time |


## Frequently asked questions

### Is Prism free?

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

### Is Dotty free?

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

### Do Prism or Dotty have ads?

Neither Prism nor Dotty shows ads.

### Which is updated more often, Prism or Dotty?

Prism ships an update every 5 days, and Dotty monthly. Most recently, Prism was updated on October 6, 2026 and Dotty on October 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.*