# PDFkai vs ondot timer｜No

PDFkai and ondot timer｜No are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PDFkai ships an update every 2 days, ondot timer｜No every 3 days. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PDFkai | ondot timer｜No |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 90.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | — | Free |
| Size | 1 MB | 3 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Kohei YAMAMOTO](https://appshunter.io/developer/1886637159) | [Momoka Shiramizu](https://appshunter.io/developer/1880005033) |

## What reviewers say

### PDFkai

[App page](https://appshunter.io/ios/app/pdfkai/id6760888905)

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

**In-app purchases:** none


### ondot timer｜No

[App page](https://appshunter.io/ios/app/ondot-timerno-math-timer/id6762602662)

This app eliminates the need for time calculations by allowing you to set timers based on a desired end time or duration. It displays both the ringing time and remaining time at a glance, perfect for tasks and deadlines.

**Highlights:** Set timers by desired end time, Set timers by duration, See ringing time and time remaining, Save frequent timer presets, Apple Watch integration, Live Activity on Lock Screen/Dynamic Island

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PDFkai free?

PDFkai is free to download, with no in-app purchases.

### Is ondot timer｜No free?

ondot timer｜No is free to download, with no in-app purchases.

### Do PDFkai or ondot timer｜No have ads?

Neither PDFkai nor ondot timer｜No shows ads.

### Which is updated more often, PDFkai or ondot timer｜No?

PDFkai ships an update every 2 days, and ondot timer｜No every 3 days. Most recently, PDFkai was updated on September 28, 2026 and ondot timer｜No on October 7, 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.*