# PercentLab: Percent Calculator — Discount, Tax & Percent Change > Discount, Tax & Percent Change (iPhone/iPad app by Ahmet Murat Kokba.) - Source: https://appshunter.io/ios/app/percentlab-percent-calculator/id6761619931 (this page in markdown: same URL + `.md`) - Developer: [Ahmet Murat Kokba](https://appshunter.io/developer/1890492529) - Category: Utilities, Finance - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 17.0 · 12 MB - Languages: American English, Turkish - Released: 2026-04-08 - Data updated: 2026-10-18 ## What is PercentLab? Calculate percentages, discounts, increases and tax on one screen. Core calculations and comparisons are free with PercentLab. A 20% discount on 1,000 means a final price of 800. See the discount amount and the final price together, without repeating the calculation. FREE CALCULATION TOOLS • Find any percentage of an amount. • Add or subtract a percentage to see the final value. • Calculate prices including and excluding tax at your chosen rate (shown as VAT in the app). • Compare two values: find the percentage change or what percent one is of the other. • Customize your quick percentage buttons in Settings. • Copy or share a result and revisit recent calculations. ENGLISH AND TURKISH PercentLab follows your phone’s supported language when you first open it. Switch between English and Turkish using the flag button in Settings. Number formats, calculation history and reports adapt to your selected language. DO MORE WITH PERCENTLAB PREMIUM • Sequential calculations: Apply up to 10 steps to one amount. A 20% discount followed by 10% is a total discount of 28%—see each step clearly. • Batch calculations: Paste up to 200 amounts, apply the same percentage operation to every line and see the grand total. • Currency tools: Convert between TRY, USD, EUR, GBP and JPY and view exchange rates. • Unlimited calculation history. • Export calculations as PDF or CSV. Core calculations are free. Premium tools require a one-time in-app purchase. Your local price is shown on the purchase screen. Restore a previous purchase using Restore Purchases in Settings. Refreshing exchange rates requires an internet connection. Currency conversions are for reference and are not bank or transaction quotes. You set the VAT rate yourself. Enter an amount. Choose a rate. Get your answer. Support: info@thepercentlab.com ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Yüzde Hesaplama: PercentLab Premium | $2.99 | one-time | | Reklamları Kaldır | $0.99 | one-time | ## Is PercentLab safe? Not enough ratings yet to assess PercentLab. ## Is PercentLab legit? PercentLab: Percent Calculator appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for PercentLab is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 2.2.3 — 2026-10-18 • Complete Premium purchases started on the App Store inside PercentLab. • Clearer purchase results and protection against duplicate payment requests. • Existing Premium access and Restore Purchases remain available. Premium is a one-time purchase with no subscription. ### 2.2.2 — 2026-10-15 • Complete Premium purchases started on the App Store inside PercentLab. • Clearer purchase results and protection against duplicate payment requests. • Existing Premium access and Restore Purchases remain available. Premium is a one-time purchase with no subscription. ### 2.2.1 — 2026-10-15 A clearer, more reliable Premium experience. • Explore batch and sequential calculations, PDF/CSV export and more on the refreshed Premium screen. • Try the free preview before purchasing. • The App Store price is refreshed before purchase. If the price or storefront changes, the updated offer is shown for you to confirm again. • Restore Purchases results now remain visible in Settings, with clearer connection and cancellation messages. Basic calculations remain free. Premium is a one-time purchase, with no subscription. ### 2.2.0 — 2026-10-14 Try Premium tools before you buy. • Apply a discount to three amounts or calculate two discounts in sequence. Change the values and see the results instantly. • Open the free Premium preview from the home screen or Settings. • See Premium benefits and the one-time price in a clearer purchase screen. • Improved purchase restoration and recognition of earlier ad-removal purchases. Basic calculations remain free. Full Premium tools require a one-time purchase, with no subscription. ### 2.1.1 — 2026-10-02 Use PercentLab in English and Turkish. See percentage, discount, increase and tax results on one screen. This release updates our store information while preserving your calculation tools and purchases. ## Apps similar to PercentLab | App | Rating | Price | Category | | --- | --- | --- | --- | | [İstanbul Reklam Mobil](https://appshunter.io/ios/app/istanbul-reklam-mobil/id6744919607) | — | Free | Utilities | | [DiscountCalculator - %](https://appshunter.io/ios/app/discountcalculator/id6745273401) | 5.0 (2) | Free | Utilities | | [Yuzdelik](https://appshunter.io/ios/app/yuzdelik/id6787462437) | — | Free | Utilities | | [HesapMatik: KDV Hesaplama](https://appshunter.io/ios/app/hesapmatik-kdv-hesaplama/id6758018075) | — | Free | Utilities | | [CalcuStyle: Custom Calculator](https://appshunter.io/ios/app/calcustyle-custom-calculator/id6753620122) | — | Free | Utilities | | [Cacti Viewer](https://appshunter.io/ios/app/cacti-viewer/id6504130330) | 5.0 (1) | $3.99 | Utilities | ## More apps by Ahmet Murat Kokba - [RentalShield: Rental Car Check](https://appshunter.io/ios/app/rentalshield-rental-car-check/id6814520987) - [CustomFlow](https://appshunter.io/ios/app/customflow/id6816101060) - [Home Budget: Expense Tracker](https://appshunter.io/ios/app/home-budget-expense-tracker/id6818788099) All apps by Ahmet Murat Kokba: https://appshunter.io/developer/1890492529 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-18.*