cardFlash vs Voice Multiply
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
cardFlash
This free flashcard application offers two study modes: Flashcard Mode for traditional review and Adaptive Mode, which uses a smart algorithm to ensure mastery of terms. It allows for easy creation and import of study sets, including from Quizlet, and is completely ad-free.
- Adaptive Learn Mode
- Flashcard Mode
- Quizlet Import
- 100% Ad Free
- QR Code Set Sharing
- Folders
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No one likes paying for educational tools. Quizlet's paywalling harms thousands of students by taking away a valuable study resource. Hence, cardFlash is completely FREE! My mission with cardFlash is to provide everyone with equal access to the tools to be successful in whatever educational they pursue. A simple, clean flashcard app to help you learn what you need to learn. cardFlash will ALWAYS remain completely free and without ads (because ads suck). cardFlash makes studying for that French or Spanish test super easy! If your teacher has a set on Quizlet, you are able to quickly to import it in to cardFlash. Otherwise, you can also easily create a brand new set inside of cardFlash. Once you have your set, you can either choose to study with Flashcard Mode or Adaptive Mode. Flashcard mode allows you to go through the set just as if you had physical flashcards. Adaptive mode tests you with multiple choice and writing questions to help you learn the terms. Adaptive mode will guarantee that you know your stuff, the algorithm won't let you move past a term till you can get it right many times in a row. Adaptive mode is also super customizable, with its settings page that allows you to tweak everything about of the algorithm to best suit you. CURRENT FEATURES: - Adaptive Learn Mode - Flashcard Mode - Smart Flashcard Mode - Easily Edit Your Sets - 100% Ad Free - Quizlet Import - QR Code Set Sharing - Folders FEATURES TO COME: - Image Support - TTS Support - Online Sharing of Sets Request new features here: https://itsmichaelyu.github.io/cardFlashFeature Report bugs here: https://itsmichaelyu.github.io/cardFlashBug
Voice Multiply
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Voice Multiply — the hands-free way to master your multiplication tables. Hear the question. Speak the answer. Beat your time. No typing, no taps — just voice. The app reads a question ("What is 8 times 8?"), you reply ("64"), and it instantly tells you if you're right. After each round you get a clean breakdown: correct count, accuracy, and answers-per-minute. Can you crack 60/5min? Top scorers push past 100. Designed for kids learning multiplication, students reviewing before a test, and adults brushing up on the go. • 1× to 10× tables (free tier covers 1–5; Pro unlocks 6–10) • 1, 2, 3, 5, or 10-minute test sessions • Voice mode (read + listen) or Quick mode (text-only, faster) • 38 UI languages — Norwegian, English, French, Spanish, German, Hindi, Japanese, Chinese, Arabic, and more • Free Pro access for Hindi speakers • Reveal the answer anytime, or let the 10-second timer move you on • All speech processed on device — no recordings leave your phone In-App Purchase: Full Tables Unlock (one-time, no subscription)
Screenshots
Verdict
The clearest difference is in-app purchases: cardFlash at none against Voice Multiply's 1. cardFlash also leads on iOS requirement (11.0 vs 17.0). 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. Voice Multiply sells 1 one-off in-app purchase. cardFlash asks for nothing beyond the download.
cardFlash ships an update every 3 weeks, Voice Multiply every 2 weeks. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.
| Parameter | cardFlash | Voice Multiply |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (25 ratings) — better | — |
| Positive reviews | 94.1% of reviews | — |
| Number of ratings | 25 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 35 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Yu | OLE PETTER HAUGEN |
In-app purchases
cardFlash
No in-app purchases
Voice Multiply
- All 10 tables$14.99









