Comparison

先生 vs PROTOCOL

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

Head to head
About

先生

Features
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先生、お元気ですか。 春が来て、また僕たちは 人生の階段を上りました。 踊り場でふと、満開の桜を見て 先生の言葉を思い出したんです。 厳しい冬の寒さがあってこそ 桜は綺麗な花を咲かす。 先生、あなたは教えてくれました。 先生、あなたは冬の寒さに耐えた桜です。 先生、今、花を咲かす時が来ました。 ++++++++++++++++++++++++++++ あの”先生“がスマートフォンアプリで奇跡の大復活!! 画面をタップ!迫りくる人生の壁を切り抜けろ! ++++++++++++++++++++++++++++ 容赦ない言葉の羅列! トラウマ必須!悪夢の様に耳障りなB・G・M! 危うし!エレクトロ・サイキック・サイバー・パンク・ティーチャー! レッツ・キャッチ・ザ・フューチャー! ノーフューチャー!

About

PROTOCOL

Features
Read full description

The day dimensional rifts opened, monsters and the Dimension Awakened appeared at the same time. As monsters spread across the world, the government gathered students with dimensional powers and established the Tactical Academy. Become its commander, train your students, and deploy to a city under threat. Control the leader directly and give orders to two fellow agents. Combine their abilities, weapons, and parts to lead a three-person squad. • Survive the waves of monsters. • Train distinctive students and build your squad. • Find powerful combinations, overcome each battle, and protect the city. A two-person indie game. PROTOCOL: Zero Rift

Screenshots

先生4 screens
PROTOCOL4 screens

Verdict

The call

The clearest difference is in-app purchases: 先生 at none against PROTOCOL's 10. 先生 also leads on ads (none vs shown) and iOS requirement (6.0 vs 15.0). PROTOCOL's advantage is update cadence (every 3 days vs every 43 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PROTOCOL sells 10 one-off in-app purchases. 先生 asks for nothing beyond the download.

UpkeepUpdate frequency

先生 ships an update every 43 months, PROTOCOL every 3 days. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 3 level
先生 versus PROTOCOL: the parameters behind the verdict, then further details
Parameter先生PROTOCOL
PriceFreeFree
Positive reviews90.9% of reviews—
Update frequencyEvery 43 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS6.0 — better15.0
Further details — not scored
Size23 MB259 MB
Age rating9+9+
Developerm7kenjiSungGwon Han

In-app purchases

None

先生

No in-app purchases

10 purchases

PROTOCOL

One-time10
  • Beginner Package 1$0.99
  • Sale Package 3$1.99
  • Sale Package 1$2.99
Show 7 more
  • Sale Package 2$4.99
  • Beginner Package 2$4.99
  • Remove Ad$5.99
  • Daily Special Mission Ticket$7.99
  • Mission Energy Booster (30 Days)$9.99
  • Stage Pass$9.99
  • Beginner Package 3$14.99

Questions

Is 先生 free?
先生 is free to download, with no in-app purchases.
Is PROTOCOL free?
PROTOCOL is free to download, with in-app purchases available.
Do 先生 or PROTOCOL have ads?
PROTOCOL shows ads; 先生 does not.
Which is updated more often, 先生 or PROTOCOL?
先生 ships an update every 43 months, and PROTOCOL every 3 days. Most recently, 先生 was updated on October 24, 2026 and PROTOCOL on October 30, 2026.

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