# ShiftNight vs ZOSA

The clearest difference is update cadence: ShiftNight at every 5 days against ZOSA's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ShiftNight sells 11 in-app purchases, starting at $8.99 per 7 days and ZOSA sells 4 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ShiftNight ships an update every 5 days, ZOSA every 9 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ShiftNight | ZOSA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (59 ratings)](https://appshunter.io/ios/app/shiftnight-sleep-tracker/id6761045529/reviews)** | — |
| Number of ratings | **59** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 9 days |
| Monetization | Subscription | — |
| Size | 196 MB | 76 MB |
| Requires iOS | 17.4 | **16.1** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [HAVEN VU](https://appshunter.io/developer/1887485099) | [ZOSA LTD](https://appshunter.io/developer/1888938695) |

## What reviewers say

### ShiftNight

[App page](https://appshunter.io/ios/app/shiftnight-sleep-tracker/id6761045529)

This app creates personalized sleep plans for individuals with irregular schedules. It provides recommendations for sleep, caffeine intake, and naps based on your unique daily routine, helping you optimize rest and recovery.

**Highlights:** Personalized sleep plans, Schedule-aware recommendations, Caffeine timing guidance, Nap planning, Sleep tracking, Recovery day transitions

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $8.99 | per 7 days |
| Weekly | $9.99 | per 7 days |
| Monthly | $14.99 | per month |
| Annual | $29.99 | per year |
| Annual | $39.99 | per year |
| Annual | $49.99 | per year |
| Annual | $59.99 | per year |
| Annual | $59.99 | per year |
| Annual | $59.99 | per year |
| Annual | $69.99 | per year |
| Lifetime | $69.99 | one-time |


### ZOSA

[App page](https://appshunter.io/ios/app/zosa/id6761328397)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZoPlus Monthly | $5.99 | per month |
| ZoPro Monthly | $9.99 | per month |
| ZoPlus Yearly | $49.99 | per year |
| ZoPro Yearly | $99.99 | per year |


## Frequently asked questions

### Is ShiftNight free?

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

### Is ZOSA free?

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

### Do ShiftNight or ZOSA have ads?

Neither ShiftNight nor ZOSA shows ads.

### Which is updated more often, ShiftNight or ZOSA?

ShiftNight ships an update every 5 days, and ZOSA every 9 days. Most recently, ShiftNight was updated on October 24, 2026 and ZOSA on October 31, 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.*