Letter Flash vs Sandflash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Letter Flash
This educational app focuses on teaching young children the alphabet, numbers, colors, basic words, and shapes. It provides a simple, distraction-free learning environment designed to help kids master early concepts.
- Alphabet learning
- Number recognition
- Color identification
- Simple word recognition
- Shape learning
- Distraction-free interface
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I wanted an app that was just letters to help my kids learn their ABCs, numbers, colors, simple words, and shapes. Most of the other apps were too distracting or full of extra stuff, so I made this one.
Sandflash
This app provides a straightforward digital flashcard experience for studying and memorization. It aims to replicate the simplicity of traditional flashcards for educational purposes.
- Digital flashcard creation
- Study and memorization tool
- Simple user interface
- Free to use
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A free and simple vibe coded flashcard app for learning purposes. Sandflash's goal is to mimic basic flashcards used for studying or memorization.
Screenshots
Verdict
The clearest difference is price: Sandflash at Free against Letter Flash's $1.99. Sandflash also leads on update cadence (monthly vs every 8 months) and rating (5.0 vs 4.6). Letter Flash's advantage is chart position (#176 vs unranked). On ratings volume, ads, in-app purchases 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
Sandflash is free to download; Letter Flash costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sandflash holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 8 and 3 respectively.
Letter Flash ships an update every 8 months, Sandflash monthly. The most recent releases landed on September 3, 2026 and June 2, 2026 respectively.
| Parameter | Letter Flash | Sandflash |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.6 (8 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 8 — better | 3 |
| Update frequency | Every 8 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #176 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 11 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryan Mcdermott | Joshua Smith |
Customer experience
Letter Flash
Sandflash
In-app purchases
Letter Flash
No in-app purchases
Sandflash
No in-app purchases
Questions
Is Letter Flash free?
Is Sandflash free?
Which has better reviews, Letter Flash or Sandflash?
Do Letter Flash or Sandflash have ads?
Which is updated more often, Letter Flash or Sandflash?
Other comparisons
