One Tool Box vs Live Altimeter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
One Tool Box
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One Tool Box brings together the everyday utilities you'd otherwise need a dozen separate apps for — documents, PDFs, photos, audio, and more — in one fast, focused app that never leaves your device. DOCUMENTS & PDF - Scan documents with auto-straightening and clean output - Sign PDFs by hand, place and flatten your signature - Merge, organize, reorder, and page-number PDFs - Compress PDFs while keeping text sharp - Password-protect PDFs and add watermarks - Convert PDFs to images and images to PDF - Copy IDs and passports to a print-ready sheet - Official letters and attestations for 7 countries (France, Germany, Spain, Italy, UK, US, China), written in the local language and ready to send PHOTOS & IMAGES - Retouch: heal blemishes, censor, adjust, apply filters and crop - Remove backgrounds automatically - Compress and convert between image formats - Add watermarks, stitch panoramas, compare images side by side - Crop to circles, split into grids, read EXIF data - Pick colors from any photo - Passport and ID photos sized to spec AUDIO & FILES - Transcribe recordings to text, fully on-device - Convert audio and video between common formats - Encrypt and decrypt files and folders, interoperable with your computer - A private vault for sensitive documents - OCR: pull text out of scanned pages and images - Translate text between languages - Word count and text utilities FOR LIFE IN FRANCE - Income tax and mileage allowance calculators - VAT calculator - IBAN checker - Notaire and calendar helpers Everything happens locally on your device: no accounts, no ads, no analytics, no data collection of any kind. One Tool Box contains no networking code whatsoever, so nothing you scan, sign, encrypt, or transcribe can ever leave your device. One purchase. Every tool. Nothing else needed.
Live Altimeter
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Altitude combines a live altimeter with a customizable watermark camera. Check altitude and local information while hiking, climbing, camping or traveling, then capture the details of the moment alongside the view. - Live altitude readings See your current altitude together with its estimated uncertainty. Switch between meters and feet, and read key measurements at a glance on a clear instrument display. - Air pressure, speed and direction View local ambient pressure on devices equipped with a barometer, with support for kPa, mbar, atm and mmHg. Check your movement speed and north–south indicators referenced to magnetic north. - Coordinates, places and solar times View latitude and longitude in degrees, minutes and seconds or decimal degrees. Tap to switch between coordinates, place names and addresses, and today’s estimated sunrise and sunset times. - Capture the moment with photo watermarks Choose which details appear on your photos: altitude, place, capture time, coordinates, pressure and heading. Available readings are recorded when you take the photo and remain fixed while you edit the watermark afterward. - Add watermarks to existing photos Select a photo from your library and use its saved capture information, or record current device information separately. When you use current information, the watermark includes “Recorded when the watermark was added,” clearly identifying when those readings were taken. - Make each watermark your own Choose from three styles: Altitude, Footprint and Instrument. Place the watermark in any corner, choose individual information fields, add up to 18 characters of custom text, and adjust opacity from 50% to 100%. - Shoot, save and share Switch between front and rear cameras, use supported zoom and flash options, and compose with grid lines. Preview your finished photo, save it to your photo library, or send it through the system share sheet. - Support for 15 languages Follow your device’s language or choose one directly in the app. Customize altitude units, pressure units and coordinate formats to suit your preferences. Altitude readings and sunrise and sunset times are estimates. Accuracy and feature availability depend on location conditions, device hardware and permissions. Pressure readings represent local ambient pressure without sea-level correction. Unavailable information is omitted from watermarks.
Screenshots
Verdict
The clearest difference is in-app purchases: Live Altimeter at none against One Tool Box's 1. Live Altimeter also leads on iOS requirement (15.6 vs 18.4). On price, update cadence, ads 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. One Tool Box sells 1 one-off in-app purchase. Live Altimeter asks for nothing beyond the download.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.
| Parameter | One Tool Box | Live Altimeter |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.4 | 15.6 — better |
| Further details — not scored | ||
| Size | 16 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 吉 汤 | 甲斌 王 |
In-app purchases
One Tool Box
- Letters Export$0.99
Live Altimeter
No in-app purchases









