# VIKI KNOWS vs OOTimer

The clearest difference is in-app purchases: VIKI KNOWS at none against OOTimer's 3. VIKI KNOWS also leads on device support (3 vs 1) and iOS requirement (11.3 vs 17.0). OOTimer's advantage is update cadence (every 9 days vs every 2 months). On price and ads there is nothing between them.

Both are free to download. OOTimer sells 3 in-app purchases, starting at $1.99 per month. VIKI KNOWS asks for nothing beyond the download.

VIKI KNOWS ships an update every 2 months, OOTimer every 9 days. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | VIKI KNOWS | OOTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ootimer-pomodorokitchen-timer/id6759169287/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 113 MB | 93 MB |
| Requires iOS | **11.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [VIKIKNOWS](https://appshunter.io/developer/1146360176) | [凯 张](https://appshunter.io/developer/1872553288) |

## What reviewers say

### VIKI KNOWS

[App page](https://appshunter.io/ios/app/viki-knows/id1152283111)

**Features:** macOS Compatibility

**In-app purchases:** none


### OOTimer

[App page](https://appshunter.io/ios/app/ootimer-pomodorokitchen-timer/id6759169287)

This app offers a visually engaging timer experience with a skeuomorphic design and soothing ambient sounds. It provides manual and preset timing options for various activities, promoting focus and relaxation. Unlock additional themes and sounds through a subscription.

**Highlights:** Skeuomorphic rotary timer design, Themed dials and playful themes, Immersive white noise ambient sounds, Manual dial and quick preset timing, Ad-free and privacy-focused, Companion for daily rituals

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual Subscription | $2.99 | per year |
| Lifetime Access | $3.99 | one-time |


## Frequently asked questions

### Is VIKI KNOWS free?

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

### Is OOTimer free?

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

### Do VIKI KNOWS or OOTimer have ads?

Neither VIKI KNOWS nor OOTimer shows ads.

### Which is updated more often, VIKI KNOWS or OOTimer?

VIKI KNOWS ships an update every 2 months, and OOTimer every 9 days. Most recently, VIKI KNOWS was updated on September 30, 2026 and OOTimer on October 12, 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.*