Comparison

Compass Retro vs KuCalc3

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

Head to head
About

Compass Retro

Experience a photorealistic retro compass that transforms your device into an intuitive navigation tool. It offers a full-screen analog display with smooth needle alignment to true north. Choose between light and dark themes for a visually appealing experience.

Highlights
  • Full-screen photorealistic display
  • Smooth true north alignment
  • Intuitive analog instrument feel
  • Light and dark theme support
  • Purpose-built for reliable navigation
Features
Read full description

A full-screen, photo-realistic retro compass fills your display, recreating the look and feel of a classic analog instrument. When you hold your device flat, the needle smoothly aligns to true north, turning your phone into a dedicated, intuitive navigation tool. The app supports both light and dark themes, each with its own carefully crafted photograph: in light mode, the compass rests in bright, daytime lighting; in dark mode, it's bathed in the warm glow of an evening sunset. This app is purpose-built for one thing only-being a beautiful, reliable compass-with no extra screens, menus, or distracting features.

About

KuCalc3

Features
Read full description

KuCalc3は、計算履歴を端末内に自動保存し、結果をすぐ再利用できるiPhone/iPad向け電卓です。 主な機能 ・四則演算、パーセント計算 ・税率を設定できる+Tax / -Tax ・計算式と結果を自動保存する履歴 ・履歴をタップして結果を再利用 ・よく使う履歴の先頭移動、個別削除、全削除 ・計算結果や式を書き留められるメモパッド ・Black、White、i Color、Candy、Cat、Orangeの6テーマ ・Round、Floor、Ceilによる丸め ・PUSH / POPで使える一時値スタック ・iPhoneとiPadの縦向き・横向きに対応 ・iPadでは電卓と履歴を並べる2ペイン表示 アカウント登録やネットワーク接続なしで、日常の計算をすぐに始められます。 履歴、メモ、税率、テーマ設定は端末内に保存されます。計算内容を外部サーバーへ送信せず、広告や利用状況分析も使用しません。 毎日の買い物、割り勘、消費税の確認など、あとで見返したい計算にKuCalc3をご活用ください。

Screenshots

Compass Retro4 screens
KuCalc34 screens

Verdict

The call

The clearest difference is in-app purchases: KuCalc3 at none against Compass Retro's 1. KuCalc3 also leads on ads (none vs shown) and update cadence (daily vs every 8 days). On price, device support and iOS requirement 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. Compass Retro sells 1 one-off in-app purchase. KuCalc3 asks for nothing beyond the download.

UpkeepUpdate frequency

Compass Retro ships an update every 8 days, KuCalc3 daily. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Compass Retro versus KuCalc3: the parameters behind the verdict, then further details
ParameterCompass RetroKuCalc3
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 8 daysDaily — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size36 MB19 MB
Age rating4+4+
Developerakira ohmachiMineaki Sakatoku

In-app purchases

1 purchases

Compass Retro

One-time1
  • Remove Ads$1.99
None

KuCalc3

No in-app purchases

Questions

Is Compass Retro free?
Compass Retro is free to download, with in-app purchases available.
Is KuCalc3 free?
KuCalc3 is free to download, with no in-app purchases.
Do Compass Retro or KuCalc3 have ads?
Compass Retro shows ads; KuCalc3 does not.
Which is updated more often, Compass Retro or KuCalc3?
Compass Retro ships an update every 8 days, and KuCalc3 daily. Most recently, Compass Retro was updated on October 31, 2026 and KuCalc3 on October 29, 2026.

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