Tether.io vs Whooo?
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Tether.io
A simple, one-tap arcade game where players aim to score 10 points by tapping a ball at the precise moment to keep it spinning counter-clockwise. Master the timing to win.
- One-tap gameplay
- Score-based objective
- Counter-clockwise ball spin
- Simple arcade mechanics
- Timing-based challenges
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Tether ball is a one tap io game. The objective is to lap the ball string counter-clockwise by tapping the ball at the right time. You win the game when reached score 10.
Whooo?
A fun guessing game where players identify characters based on their features. Unlock all the cards by correctly identifying the right person. Play solo or challenge friends in versus mode.
- Character identification
- Feature-based guessing
- Card collection
- Solo mode
- Versus mode
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Does he have a mustache? Does he have blue eyes? Oh! I found him! There are many characters but only one is right! Will you be able to unlock all cards? You know this game, let’s play with us in the solo mode or in the versus mode !
Screenshots
Verdict
The clearest difference is rating: Tether.io at 5.0 against Whooo?'s 4.3. Tether.io also leads on in-app purchases (none vs 10) and ads (none vs shown). Whooo?'s advantage is ratings volume (33K vs 2) and update cadence (every 6 weeks vs every 4 months). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Whooo? sells 10 one-off in-app purchases. Tether.io asks for nothing beyond the download.
Tether.io holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Whooo? has 33K ratings behind it against 2, so its average is the more settled of the two.
Tether.io ships an update every 4 months, Whooo? every 6 weeks. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.
| Parameter | Tether.io | Whooo? |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.3 (33K ratings) |
| Positive reviews | — | 18.5% of reviews |
| Number of ratings | 2 | 33K — better |
| Update frequency | Every 4 months | Every 6 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 152 MB | 219 MB |
| Age rating | 4+ | 4+ |
| Developer | Hemz Studios LLC | Yso Corp |
Customer experience
Tether.io
Whooo?
Bugs and requests
Tether.io
Not enough reviews yet to summarise bugs or requests.
Whooo?
Reported bugs
2 issues- Game freezes during finals
- Opponent cards not matching correctly
Requested features
4 requests- Reduce ads or offer ad-free version
- Add ability to choose characters
- Improve gameplay balance
- Expand question options
In-app purchases
Tether.io
No in-app purchases
Whooo?
- 1000 coins$0.99
- 2250 coins$1.99
- Remove Ads$2.99
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- 6000 coins$4.99
- Monster Pack$4.99
- Redheads Pack$4.99
- Glasses Pack$4.99
- Hat Pack$4.99
- 15 000 coins$9.99
- Ultimate Pack$14.99
