Comparison

Prolog Retro Notes vs AIChat無制限

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

Head to head
About

Prolog Retro Notes

This app offers a unique note-taking experience with a retro 8-bit aesthetic. It allows users to record memos, track editing time, and even attach photos, all within a nostalgic, game-like interface. Level up your notes and enjoy a blast from the past.

Highlights
  • Retro 8-bit graphics
  • Memo recording
  • Playtime tracking
  • Level-based text progress
  • Photo attachment
  • Passcode lock (premium)
Features
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_______________________________ Do you like retro graphics? ▼ Yes No _______________________________ For those who answered yes! Annotepad app that incorporates the nostalgic feeling of those days and reproduces the world has been born!! It's an app to remember the excitement of that day when your heart swelled with adventure into an unknown world. Today as well, let's choose a save data and head to the forest of sentences... In this memo app, you can record: - Memos - Playtime (editing time) - Level (varies depending on the amount of text) - Photos Let's level up and create great save data!! We paid special attention to the world view. We hope it can be of some use in your memo life. [Premium Service] ■ Unlocked Features - Hide in-app ads - Record photos - Unlock the record limit - Passcode lock function ■ Duration It will automatically renew every month starting from the application date. It will be charged to your iTunes account. ■ About Automatic Renewal You can stop automatic renewal if it is more than 24 hours before the end of the registration period. Automatic renewal procedures will be conducted from 24 hours before the end of the registration period. ■ Confirmation and Cancellation App Store App -> User icon at the upper right of the ToDay tab -> Subscription You can unsubscribe and set automatic renewal and check the update date here. ■ Notes - Automatic renewal of the premium plan cannot be canceled from within the app. - You will be charged to your iTunes account. - Cancellation for the current month is not accepted. ■ Terms of Use and Privacy Policy We will not provide information that can identify individuals to third parties. We manage personal information with great care and handle it as follows. - Support Correspondence No information that can identify individuals will be sent in support emails. - Details Link https://note.com/kojiro79/n/n7c8899db1c9b ■ Disclaimer We will do our best to support any problems or inconveniences in use, but the developer will not be held responsible for any damages caused by the user through this app. ----- Thank you for reading to the end! All reviews are read by the developer himself, and I always get energy from them. I also think about functions based on what you write in your review, so I would be happy if you could write a review when you have time! We will continue to update the app to make it comfortable for everyone, so please support us!

About

AIChat無制限

Features
Read full description

AIと自由に会話できる高機能チャットアプリ! AIの性格やステータスを自由にカスタマイズして、好みのAIを作ろう! 本アプリは、OpenAIの最新AI技術を活用したチャットアプリです。 簡単な操作でAIと自由に会話でき、日常の疑問やアイデア出し、雑談まで幅広く対応します。 主な機能 • スムーズなAIチャット メッセージを送信すると即座にAIが応答!シンプルで直感的なUIで快適に使えます。 • 会話のカスタマイズ チャットのアイコンやタイトルを自由に設定でき、オリジナルの会話体験が可能。 • トークン管理機能 AIとの対話に必要なトークンの残量を確認し、無駄なく利用できます。 • 履歴管理 過去の会話履歴を一覧で確認し、いつでも振り返りができます。 • よくある質問(FAQ)搭載 アプリの使い方や制限についての疑問をすぐに解決! こんな方におすすめ AIと気軽に会話したい方 カスタマイズできるチャットアプリを探している方 クリエイティブなアイデアをAIと一緒に考えたい方 トーク履歴を管理しながら、効率的に情報を整理したい方 最新のAI技術で、新しいコミュニケーション体験をあなたに。 今すぐダウンロードして、便利で楽しいAIチャットを体験しましょう!

Screenshots

Prolog Retro Notes1 screens
AIChat無制限4 screens

Verdict

The call

The clearest difference is update cadence: AIChat無制限 at every 4 months against Prolog Retro Notes's every 9 months. Prolog Retro Notes's advantage is iOS requirement (14.0 vs 16.0). On price, ads, 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. Prolog Retro Notes sells 1 in-app purchase, starting at $0.99 per month and AIChat無制限 sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Prolog Retro Notes ships an update every 9 months, AIChat無制限 every 4 months. The most recent releases landed on October 13, 2026 and September 27, 2026 respectively.

Scorecard2 real differences · 8 level
Prolog Retro Notes versus AIChat無制限: the parameters behind the verdict, then further details
ParameterProlog Retro NotesAIChat無制限
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 9 monthsEvery 4 months — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better16.0
Further details — not scored
Size38 MB27 MB
Age rating4+4+
Developeryasuhiro kojimaYUKI WATANABE

In-app purchases

1 purchases

Prolog Retro Notes

Subscriptions1
  • Premium plan$0.991 Month
2 purchases

AIChat無制限

One-time2
  • トークン追加$0.49
  • 広告非表示$1.99

Questions

Is Prolog Retro Notes free?
Prolog Retro Notes is free to download, with in-app purchases available.
Is AIChat無制限 free?
AIChat無制限 is free to download, with in-app purchases available.
Do Prolog Retro Notes or AIChat無制限 have ads?
Both Prolog Retro Notes and AIChat無制限 show ads.
Which is updated more often, Prolog Retro Notes or AIChat無制限?
Prolog Retro Notes ships an update every 9 months, and AIChat無制限 every 4 months. Most recently, Prolog Retro Notes was updated on October 13, 2026 and AIChat無制限 on September 27, 2026.

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