# ONYX vs SayPlan

The clearest difference is iOS requirement: SayPlan at 15.5 against ONYX's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ONYX sells 6 in-app purchases, starting at $0.29 per 7 days and SayPlan sells 7 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ONYX ships an update every 2 weeks, SayPlan fortnightly. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ONYX | SayPlan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Size | 74 MB | 134 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aresapps Inc](https://appshunter.io/developer/1727296272) | [Upsster Labs Ltd](https://appshunter.io/developer/1752809829) |

## What reviewers say

### ONYX

[App page](https://appshunter.io/ios/app/onyx-screen-time-control/id6575344731)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Week Access | $0.29 | per 7 days |
| Full Monthly Access | $9.99 | per month |
| Full Month Access | $19.99 | per month |
| Full Annual Access | $49.99 | per year |
| Full Annual Access | $99.99 | per year |
| Full Lifetime Access | $99.99 | one-time |


### SayPlan

[App page](https://appshunter.io/ios/app/sayplan/id6770088002)

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SayPlan Plus | $5.99 | per month |
| SayPlan Plus | $54.99 | per year |
| 100 AI Credits | $1.99 | one-time |
| 300 AI Credits | $4.99 | one-time |
| 750 AI Credits | $9.99 | one-time |
| 2000 AI Credits | $19.99 | one-time |
| 5000 AI Credits | $34.99 | one-time |


## Frequently asked questions

### Is ONYX free?

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

### Is SayPlan free?

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

### Do ONYX or SayPlan have ads?

Neither ONYX nor SayPlan shows ads.

### Which is updated more often, ONYX or SayPlan?

ONYX ships an update every 2 weeks, and SayPlan fortnightly. Most recently, ONYX was updated on October 18, 2026 and SayPlan 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.*