Comparison

Block Tower Online vs Tether Up!

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Block Tower Online

A simple balance game where players take turns removing blocks without toppling the character on top. Compete with friends online or against AI opponents.

Highlights
  • Online multiplayer with friends
  • AI opponent for practice
  • Simple block removal gameplay
  • Character and block customization
  • Rating system for competitive play
Features
Read full description

Want to have a quick game with friends to pass the time. Let's play with [Block Tower Online] in such a case! Because it's online, you don't have to be in the same place to play against each other. And the rules are simple! No difficult controls! [How to play] Basic rules:.  You lose if you drop the person at the top.  Take turns to erase blocks while maintaining balance so as not to drop the person on top.  If you can eliminate at least one block, it is your opponent's turn.  If the player on top falls on his/her turn, he/she loses. Coins:.  You will receive coins at the end of the game for erasing blocks.  Use the coins to get characters and blocks! Random Matchups:.  You can play against someone somewhere online.  (If you are not matched within a certain time frame, you may be put into a bot match.) Aikotoba Match: Aikotoba Match  You can play together with your friends by making a password. CPU Game: You can play against the CPU.  Practice against the bot as much as you like. Ratings  The rating goes up or down depending on the win or loss of a random match.  (It does not fluctuate in the Aikouji and CPU matches.)

About

Tether Up!

This cooperative climbing action game connects two players with a single rope as they ascend endlessly. Master the tension and timing of the rope to reach new heights, with no checkpoints or defined goals. Fall and retry as many times as needed, with the sky changing color to mark your progress.

Highlights
  • Cooperative climbing gameplay
  • Rope mechanics for movement and interaction
  • Endless ascent with changing environments
  • Retry system after falling
  • Online and local multiplayer
  • Variety of environmental puzzles and hazards
Features
Read full description

一本のロープで、ふたりはつながっている。 「Tether Up!」は、相棒とロープで結ばれたまま、どこまでも高く登り続ける協力クライムアクションです。ステージの切り替えも、チェックポイントも、決められたゴールもありません。あるのは、足場と、風と、綱の向こう側にいるもうひとりだけ。 ◆ ロープが、味方にも敵にもなる ロープはたるんでいる間は自由。でも、ピンと張った瞬間、相棒の重さも勢いもそのまま自分に伝わります。先に跳びすぎれば引き戻され、息が合えば届かなかった足場にも手が届く。引っぱるか、待つか、跳ぶか。そのたった一瞬の判断が、ふたりの高度を決めます。 ◆ 落ちても、終わらない 何十メートル落ちても大丈夫。足場につかまり直して、また登ればいいだけです。途切れるのは、ふたりそろって谷底まで落ちたときだけ。だから何度でも笑って、何度でもやり直せます。 ◆ 空の色が、進んだ距離を教えてくれる 渓谷、風の庭、雲上の遺跡、黄金の空へ。背景は登るほどに移り変わり、ロードも待ち時間もなく景色だけが変わっていきます。100mごとの到達表示が、静かに背中を押してくれます。 ◆ 10種類以上の仕掛けが待っている 動く床、昇降リフト、ジャンプ台、崩れる足場、氷の床、沈む床、消える床、横風。さらにふたりでないと越えられない協力ギミックも。シーソーは重心で傾き、スイッチ橋はふたつのスイッチでつながり、回転床は40秒かけて一回転し、風の谷は10秒周期で吹き荒れます。同じ登り方は、二度とできません。 ◆ 相手は、世界のどこかの誰か オンラインならランダムマッチで見知らぬ相棒と、フレンド招待やパーティーコードなら友だちと。言葉は交わせなくても、ロープの引っぱり方だけで気持ちは伝わります。最高到達点はランキングに記録され、世界中の挑戦者と並びます。 ◆ まずは、ひとりで 「一人テスト」なら、相棒なしで操作とギミックをじっくり練習できます。記録はオンラインとは別に保存されるので、気兼ねなく何度でも。 ■ 遊び方 1. 画面の左側を好きな位置からドラッグして、左右に移動します。 2. 画面の右側をタップしてジャンプ。スティックは触れている間だけ現れるので、画面をふさぎません。 3. 右側を長押しすると、ロープを引き寄せられます(オンライン協力プレイ)。 4. 足場に着地したら踏ん張って、相棒を引き上げましょう。空中では左右に振って足場へ戻れます。 5. 高度は、ふたりのうち低いほうの足元で計測します。置いていかず、置いていかれず。 6. 出発地点より45m下の谷底へふたりとも落ちると挑戦終了。結果を確認して、0mからもう一度。 さあ、綱を結んで。行けるところまで、いっしょに。 ※サブスクリプションに関する規約は、以下のリンクをご参照ください。 プライバシーポリシー:https://docs.google.com/document/d/1V4TKKgMDuiKV10nt33OYDSLpaeuARBPib4Rui06CnqM/preview 利用規約 : https://docs.google.com/document/d/1bU2F59puS6ByM1uHiQdauddibmk4mdIzz7mKgFWEeBA/preview

Screenshots

Block Tower Online4 screens
Tether Up!3 screens

Verdict

The call

The clearest difference is review sentiment: Block Tower Online at 64% against Tether Up!'s 27%. Block Tower Online also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Tether Up!'s advantage is update cadence (every 3 days vs every 5 weeks). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Block Tower Online ships an update every 5 weeks, Tether Up! every 3 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

Scorecard5 real differences · 3 level
Block Tower Online versus Tether Up!: the parameters behind the verdict, then further details
ParameterBlock Tower OnlineTether Up!
PriceFreeFree
Positive reviews63.6% of reviews — better27.3% of reviews
Update frequencyEvery 5 weeksEvery 3 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size212 MB32 MB
Age rating4+4+
DeveloperChar RoomIBUKI YOSHIDA

Customer experience

Block Tower Online

Written reviews11 reviews
Positive63.6%
Neutral9.1%
Negative27.3%

Tether Up!

Written reviews11 reviews
Positive27.3%
Neutral9.1%
Negative63.6%

In-app purchases

None

Block Tower Online

No in-app purchases

None

Tether Up!

No in-app purchases

Questions

Is Block Tower Online free?
Block Tower Online is free to download, with no in-app purchases.
Is Tether Up! free?
Tether Up! is free to download, with no in-app purchases.
Do Block Tower Online or Tether Up! have ads?
Tether Up! shows ads; Block Tower Online does not.
Which is updated more often, Block Tower Online or Tether Up!?
Block Tower Online ships an update every 5 weeks, and Tether Up! every 3 days. Most recently, Block Tower Online was updated on October 15, 2026 and Tether Up! on October 8, 2026.

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