Geek Math vs ieRcalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Geek Math
This calculator app features an intuitive column layout for multiple equations, allowing real-time modification of numbers and operators. It offers interactive linking of numbers and a unique lock feature to protect important values.
- Intuitive column layout
- Real-time equation modification
- Linked numbers for interactive calculation
- Lock feature for number protection
- Multi-line display
- Theme selection
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* Intuitive column layout displaying multiple equations on the same screen * Ability to modify operands and operators at any time * Linked numbers that calculate interactively in real-time The calculator's display and operation have been redesigned from the ground up. Calculator Features: - Multi-line Display: Equations are clearly displayed line by line, with the length of numbers and operators automatically adjusted to fit the screen width. - Equation Modification: Freely select and change numbers within equations. Operators can also be modified to alter the results. - Linking and Interaction: Numbers in links update interactively. A single number can be linked to multiple numbers. - Theme Selection: Choose from white, black, brown, and more than three different theme colors. - Delete Functions: "AC" for full clear, erasing the entire calculator screen. "R" for line clear, removing one line from the list. "C" for clear, resetting a number to zero. "BS" for backspace, deleting the previous input. - Lock Feature: Replaces traditional memory functions with a more intuitive lock feature. Protect numbers you don't want to delete with a single button lock. - Save Previous Equations: Even if you restart your device, leave the application unopened for an extended period, or switch between applications, previous equations will be saved. Give the Geek Calculator a try! Perhaps this is the perfect calculator application for you.
ieRcalc
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ieRcalcは、計算内容を3つのステージに分けて整理できる電卓アプリです。 見積もりや集計のように複数の項目を扱う場面では、通常の電卓だけでは入力内容や合計を確認しづらいことがあります。ieRcalcなら、ステージごとに項目を分けて入力し、合計を見ながら計算を進められます。 仕事での見積もり管理や作業費の集計はもちろん、買い物、旅行費用、割り勘、家計のメモなど、日常の計算にも使いやすい設計です。テンプレート保存や自動保存にも対応しているため、繰り返し使う計算もスムーズに行えます。
Screenshots
Verdict
The clearest difference is in-app purchases: ieRcalc at none against Geek Math's 1. ieRcalc also leads on ads (none vs shown) and update cadence (every 4 days vs every 10 months). Geek Math's advantage is iOS requirement (12.0 vs 15.1). 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. Geek Math sells 1 one-off in-app purchase. ieRcalc asks for nothing beyond the download.
Geek Math ships an update every 10 months, ieRcalc every 4 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.
| Parameter | Geek Math | ieRcalc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 months | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 29 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | QQ TSUBASA | REI KAMIKURA |
In-app purchases
Geek Math
- Premium No ad & more math rows$1.99
ieRcalc
No in-app purchases









