DeTeXt vs iRelativity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DeTeXt
Easily find LaTeX commands for symbols by drawing them or searching a comprehensive database. Get the exact command you need for your documents without memorization.
- Draw symbols to find LaTeX commands
- Neural image classification for symbol recognition
- Searchable database of 1098 symbols
- Supports Apple Pencil on iPad
- Copy commands, symbols, or Unicode codepoints
- Offline symbol database
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Finding the symbol you want to use in LaTeX can be hard since you can't memorize all the commands and packages for every symbol. DeTeXt tries to solve this problem by giving you two ways to find the command you want: - Draw the symbol you want and DeTeXt's neural image classification engine will identify what it thinks are the 20 most likely LaTeX commands that will generate a symbol closest to the one you drew. DeTeXt supports Apple Pencil drawings on the iPad. - Search the entire symbol set of 1098 symbols from packages like tipa, amsmath, amssymb, textcomp and more, in addition to the default mathematical symbols. - Copy the symbol, or the character itself, or its Unicode codepoint to the system clipboard, to paste anywhere else. DeTeXt's neural engine processes your drawn symbol and finds the best matches in its symbol database, all on your device without requiring you to be online. All the symbols are stored within the app as well.
iRelativity
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Every time you move, time passes slightly slower for you than for someone standing still. That's not science fiction — it's special relativity, and it's happening to you right now. iRelativity uses your real GPS speed to calculate exactly how much time dilation you're experiencing. Every trip, every commute, every flight adds a tiny slice of time to your lifetime total. The faster you travel, the more you save. Features • Live time dilation — your phone's GPS feeds real velocity into the Lorentz equation in real time • Lifetime total — watch your accumulated time saved grow across every journey, displayed in the most readable unit from femtoseconds up to seconds • Daily history — a chart of how much time you've saved each day • Global leaderboard — compare your lifetime total with other travellers via Game Center • What-if simulator — drag a slider toward the speed of light and see what time dilation would feel like at 0.9 c • Learn tab — interactive animations of the light clock and Einstein's train thought experiment, with a Lorentz factor calculator The numbers are real. At highway speeds you save about a nanosecond per hour. Board a plane and that climbs to microseconds. The physics is identical to the corrections that keep GPS satellites accurate every day.
Screenshots
Verdict
The clearest difference is device support: DeTeXt at 4 against iRelativity's 2. iRelativity's advantage is iOS requirement (18.6 vs 26.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | DeTeXt | iRelativity |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (40 ratings) — better | — |
| Positive reviews | 92.3% of reviews | — |
| Number of ratings | 40 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, iPad |
| Requires iOS | 26.0 | 18.6 — better |
| Further details — not scored | ||
| Size | 22 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Venkata Subrahmanyan Govindarajan | Vladimir Kostadinov Stoyanov |
In-app purchases
DeTeXt
No in-app purchases
iRelativity
No in-app purchases
Questions
Is DeTeXt free?
Is iRelativity free?
Do DeTeXt or iRelativity have ads?
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