Comparison

Trigr vs OffLingua

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

Head to head
About

Trigr

This app quickly solves for all unknown measurements of right-angle and isosceles triangles using just two known values. It's designed for students, engineers, and builders needing accurate triangle calculations.

Highlights
  • Solves right-angle and isosceles triangles
  • Calculates all unknown measurements
  • Requires only two known values
  • User-friendly interface
  • Accurate calculations
Features
Read full description

Looking for an easy-to-use trigonometry solving app that can handle both right angle and isosceles triangles? Look no further than Trigr! With just two measurements - whether it's two sides or one side and an angle - Trigr can quickly and accurately solve all the other measurements, making it the perfect tool for students, engineers, builders, and anyone who needs to work with triangles on a regular basis. With Trigr, you don't need to be a math whiz to solve complex trigonometry problems. Simply input your measurements and let the app do the rest! And with its user-friendly interface, you'll be able to solve even the most complicated triangles in no time at all. But Trigr isn't just easy to use - it's also incredibly versatile. Whether you're working on a construction site, designing a building, or simply studying for a math test, Trigr has the tools you need to make accurate calculations and solve problems with ease. So why wait? Download Trigr today and start solving triangles like a pro! Standard Apple Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

OffLingua

This app offers AI-powered, private offline translation for 55 languages directly on your device. It supports text, photo, and voice input with a refined interface and advanced on-device speech recognition. All translations are processed locally, ensuring your data never leaves your iPhone.

Highlights
  • Offline AI translation for 55 languages
  • On-device text, photo, and voice translation
  • Automatic OCR for photo translation
  • Quick Translate Panel
  • Encrypted local conversation history
  • Transparent on-device performance indicators
Features
Read full description

OffLingua is a powerful, privacy-first offline translation app that runs entirely on your iPhone, redesigned from the ground up to feel like a brand-new product while keeping its core promise intact: no internet, no uploads, no tracking. Powered by TranslateGemma 4B, Google DeepMind’s advanced open translation model running fully on-device, OffLingua delivers high-quality AI translation across 55 languages including English, Spanish, French, German, Chinese, Japanese, Arabic, and more, even in airplane mode or remote areas. The app supports multiple input methods in a refined, premium interface: instant text translation, photo translation with automatic OCR and improved overlay readability, and natural voice translation using on-device speech recognition. A clear three-mode navigation (Text, Speech, Photo) sits at the core of a new visual identity with modern typography, spacing, accent colors, intentional motion, and translation cards that offer clearer hierarchy, micro-feedback, inline “listen” actions, and smarter error states. New features elevate the experience further, including a Quick Translate Panel for one-tap translation, language swapping, live transcripts, speak and listen modes, and smooth translation streaming. Conversation history is stored locally in an encrypted database, allowing you to switch languages mid-conversation and resume any session from the sidebar. Transparent on-device performance indicators clearly show when the app is offline-ready or when the model is downloading, without exposing technical clutter. All translations happen 100% on your device. No cloud servers. No data collection. No tracking. Your text, voice, and photos never leave your iPhone, fully compliant with GDPR and global privacy standards. Download the AI model once on WiFi, then use OffLingua offline forever. Break language barriers without breaking your privacy.

Screenshots

Trigr3 screens
OffLingua4 screens

Verdict

The call

The clearest difference is price: Trigr at $1.99 against OffLingua's $14.99. Trigr also leads on update cadence (daily vs every 2 months). On ads, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Trigr costs $1.99 and OffLingua $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Trigr ships an update daily, OffLingua every 2 months. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 8 level
Trigr versus OffLingua: the parameters behind the verdict, then further details
ParameterTrigrOffLingua
Price$1.99 — better$14.99
Rating5.0 (1 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings1 — better—
Update frequencyDaily — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad — betteriPhone
Requires iOS16.1 — better17.0
Further details — not scored
Size66 MB8 MB
Age rating4+4+
DeveloperEvolv Developments Pty. Ltd.R&D COPILOT SRL

Customer experience

Trigr

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

OffLingua

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Trigr

No in-app purchases

None

OffLingua

No in-app purchases

Questions

Is Trigr free?
Trigr costs $1.99, with no in-app purchases.
Is OffLingua free?
OffLingua costs $14.99, with no in-app purchases.
Do Trigr or OffLingua have ads?
Neither Trigr nor OffLingua shows ads.
Which is updated more often, Trigr or OffLingua?
Trigr ships an update daily, and OffLingua every 2 months. Most recently, Trigr was updated on November 3, 2026 and OffLingua on November 9, 2026.

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