# D.O.S.E.R vs OneTime

The clearest difference is in-app purchases: D.O.S.E.R at none against OneTime's 4. D.O.S.E.R also leads on ads (none vs shown). OneTime's advantage is update cadence (weekly vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. OneTime sells 4 in-app purchases, starting at $0.99 per month. D.O.S.E.R asks for nothing beyond the download.

D.O.S.E.R ships an update monthly, OneTime weekly. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | D.O.S.E.R | OneTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/doser/id6761130454/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | — |
| Size | 14 MB | 65 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sahad Chowdhury](https://appshunter.io/developer/1887928621) | [UNCHAN BAEK](https://appshunter.io/developer/6774037513) |

## What reviewers say

### D.O.S.E.R

[App page](https://appshunter.io/ios/app/doser/id6761130454)

This app helps pre-med and pre-health students meticulously track academic, clinical, research, and extracurricular activities. It offers study tools and analytics to maintain discipline, consistency, and readiness for applications. Centralize all your progress in one streamlined platform.

**Highlights:** Hour logging for various activities, Live session timers, Study session tracking, Progress analytics, Consistency monitoring, Goal tracking, Custom tags and notes

**In-app purchases:** none


### OneTime

[App page](https://appshunter.io/ios/app/onetime-daily-time-tracker/id6774037511)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Launch Monthly | $0.99 | per month |
| Monthly | $1.99 | per month |
| Token Bundle | $0.99 | one-time |
| Lifetime | $11.99 | one-time |


## Frequently asked questions

### Is D.O.S.E.R free?

D.O.S.E.R is free to download, with no in-app purchases.

### Is OneTime free?

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

### Do D.O.S.E.R or OneTime have ads?

OneTime shows ads; D.O.S.E.R does not.

### Which is updated more often, D.O.S.E.R or OneTime?

D.O.S.E.R ships an update monthly, and OneTime weekly. Most recently, D.O.S.E.R was updated on October 11, 2026 and OneTime on October 16, 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.*