# ReminderOS vs GeekScan

The clearest difference is iOS requirement: GeekScan at 17.6 against ReminderOS's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ReminderOS sells 3 in-app purchases, starting at $0.49 per 7 days and GeekScan sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on September 14, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | ReminderOS | GeekScan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Size | 26 MB | 97 MB |
| Requires iOS | 26.2 | **17.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Waweru](https://appshunter.io/developer/1715153836) | [非 吴](https://appshunter.io/developer/1852702609) |

## What reviewers say

### ReminderOS

[App page](https://appshunter.io/ios/app/reminderos-smart-reminders/id6758914560)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReminderOS Pro | $0.49 | per 7 days |
| ReminderOS Pro | $19.99 | per year |
| ReminderOS Lifetime | $49.99 | one-time |


### GeekScan

[App page](https://appshunter.io/ios/app/geekscan/id6766042246)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support GeekScan | $0.99 | one-time |
| Additional Support | $2.99 | one-time |


## Frequently asked questions

### Is ReminderOS free?

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

### Is GeekScan free?

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

### Do ReminderOS or GeekScan have ads?

Neither ReminderOS nor GeekScan shows ads.

### Which is updated more often, ReminderOS or GeekScan?

ReminderOS ships an update every 3 days, and GeekScan every 3 days. Most recently, ReminderOS was updated on September 14, 2026 and GeekScan on September 22, 2026.

---

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