# Interpolation 1.4 > Calculates linear and quadratic interpolations for mathematical estimations. (iPhone/iPad app by ZOFTERM.) - Source: https://appshunter.io/ios/app/interpolation-14/id557950545 (this page in markdown: same URL + `.md`) - Developer: [ZOFTERM](https://appshunter.io/developer/557950548) - Category: Utilities, Productivity - Price: Free - Rating: 3.50/5 from 6 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 1 MB - Languages: American English, Danish - Released: 2012-09-10 - Data updated: 2026-06-05 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/interpolation-14/id557950545/reviews.md ## What is Interpolation 1.4? ** INTERPOLATION ** Interpolation is used to calculate a linear or a quadratic interpolation. ## Key features - Linear interpolation calculation - Quadratic interpolation calculation - Mathematical estimation tool ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/interpolation-14/id557950545/reviews.md ### 2/5 — Numbers don’t start/end at zero *2024-03-07* What is the best until I realized there is no way to enter a negative number (?) ### 3/5 — Good for all positive number interpolation. *2023-07-15* I can’t find a way to enter negative numbers. ### 2/5 — Keyboard *2022-08-23* Keyboard has no negative available. Can’t input a negative number. ### 1/5 — Lacks negative values *2019-09-05* Could be a great app if I could enter negative values ### 5/5 — An incredibly useful app *2018-03-19* Though this app is for more specialized use, it nonetheless distinguished itself as an excellent source for quick, easy interpolation. The updated keyboard is a dramatic improvement on an already useful app. For anyone looking to do some interpolation, I highly recommend this product. ### 5/5 — Does just what it says *2013-07-11* Nice and simple, does the job. ## Frequently asked questions about Interpolation 1.4 ### What is Interpolation 1.4 used for? Interpolation 1.4 is a utility app designed to calculate both linear and quadratic interpolations. It helps users perform mathematical estimations based on provided data points. ### Is Interpolation 1.4 free to download? Yes, Interpolation 1.4 is available for free download. There are no costs associated with acquiring the application. ### What devices does Interpolation 1.4 support? Interpolation 1.4 is compatible with iPhone and iPod devices. It is designed for iOS users on these platforms. ### How often is Interpolation 1.4 updated? The latest version of Interpolation 1.4 is 2.0, which was released on March 17, 2018. The app has not received updates since then. ### What is the age rating for Interpolation 1.4? Interpolation 1.4 has an age rating of 4+. This indicates it is suitable for users aged four and above. ### Does Interpolation 1.4 have ads? No, Interpolation 1.4 does not contain advertisements. Users can utilize its features without encountering any ads. ### What is the user rating for Interpolation 1.4? Interpolation 1.4 has an average rating of 3.5 stars, based on 6 user ratings. This suggests a mixed reception from its user base. ## Version history (last 5 releases) ### 2.0 — 2018-03-17 This app has been updated by Apple to display the Apple Watch app icon. Changed keyboard type for typing values. ### 1.8 — 2017-12-12 Minor UI adjustments. ### 1.7 — 2017-08-26 Minor UI adjustments. ### 1.6 — 2017-08-14 Updated for new sizes. ### 1.3 — 2012-10-25 Added the possibility of e-mailing the calculation. Updated and refined the graphics.. ## Apps similar to Interpolation 1.4 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Steam Tables Lite](https://appshunter.io/ios/app/steam-tables-lite/id1046405234) | 1.0 (1) | Free | Utilities | | [ACN/PCN Calculator](https://appshunter.io/ios/app/acnpcn-calculator/id1049063069) | 4.5 (135) | Free | Utilities | | [CX-3 Flight Computer](https://appshunter.io/ios/app/cx-3-flight-computer/id1645428895) | 4.0 (10) | $19.99 | Utilities | | [Colorimeter Camera Color Meter](https://appshunter.io/ios/app/colorimeter-camera-color-meter/id6449255688) | 4.7 (43) | Free | Utilities | | [Interpolation Methods](https://appshunter.io/ios/app/interpolation-methods/id6557032923) | — | $1.99 | Utilities | | [myNAT](https://appshunter.io/ios/app/mynat/id6480114784) | — | Free | Utilities | ## More apps by ZOFTERM - [Calc pH](https://appshunter.io/ios/app/calc-ph/id566354963) - [Mini Marbles](https://appshunter.io/ios/app/mini-marbles/id1269276902) All apps by ZOFTERM: https://appshunter.io/developer/557950548 ## Related topics [zofterm](https://appshunter.io/ios/topics/zofterm) · [linear interpolation master](https://appshunter.io/ios/topics/linear-interpolation-master) · [9,116.40 1,826.84](https://appshunter.io/ios/topics/9-116-40-1-826-84) --- *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 2026-06-05.*