Num Trainer vs Audio Dubbing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Num Trainer
Enhance your cognitive abilities with focused games designed to improve attention, memory, reaction speed, mental math, and logic. Track your progress with detailed history charts and compete globally on leaderboards. Enjoy a clean, distraction-free experience with no ads or in-app purchases.
- Mental Math training
- Number Pair memory games
- Tap in Order challenges
- Digit-by-Digit Math
- Progress tracking
- Global leaderboards
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Num Trainer is a brain training app for faster number skills. Four focused games build attention, memory, reaction speed, mental math and logic in short sessions you can fit into any day. NEW: GLOBAL LEADERBOARDS Sign in to Game Center and your fastest times are ranked worldwide. There is a leaderboard for every game and every difficulty, so you always compete on equal rules. Not signed in? Everything still works and your records stay on your device. FOUR TRAINING GAMES • Mental Math – solve addition, subtraction, multiplication and division against the clock, from Beginner to Expert. • Number Pairs – memorise card positions and match every identical pair. • Tap in Order – a Schulte-table style challenge: find and tap numbers from smallest to largest as fast as you can. • Digit-by-Digit Math – remember a number, then transform each digit with the same step. TRACK YOUR PROGRESS Training History charts your latest, best and median time for every game and difficulty. Open the record list to review each session and the exact settings you played. SIMPLE AND FOCUSED Clean, distraction-free design, light and dark appearance, English, Simplified Chinese, Spanish and Japanese. No ads, no in-app purchases and no account required.
Audio Dubbing
This app helps users learn English effectively through a subscription-based service. It offers various subscription periods, including monthly, half-yearly, and annual plans, with auto-renewal options.
- Effective English learning
- Auto-renewal subscriptions
- Monthly, half-yearly, and annual plans
- Privacy terms available
- Supports iPhone, iPad, iPod
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It can help you learn English effectively. 【Auto-Renewal Subscription】 - Subscription periods: monthly, half-yearly or annually. -The auto-renewal service applies prior to the expiration of an active subscription. By enabling auto-renewal, within 24-hours prior to the end of the current subscription period, payment of the same subscription will be automatically deducted from your iTunes account. The exact payment amount corresponds to the following subscription periods: monthly, half-yearly or annually. -Auto-Renewable Subscriptions protocol: https://damonchen117.github.io/diandubi/protocolEN.txt -Privacy Terms: https://damonchen117.github.io/diandubi/privacy.txt
Screenshots
Verdict
The clearest difference is review sentiment: Num Trainer at 100% against Audio Dubbing's 30%. Num Trainer also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 3). Audio Dubbing's advantage is iOS requirement (14.0 vs 18.0). On price, ratings volume, 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. Audio Dubbing sells 3 in-app purchases, starting at $1.99 per month. Num Trainer asks for nothing beyond the download.
Num Trainer holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of Num Trainer's written reviews are positive against 30% of Audio Dubbing's.
Num Trainer ships an update every 9 days, Audio Dubbing monthly. Both last shipped on November 3, 2026.
| Parameter | Num Trainer | Audio Dubbing |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 30.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 9 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 127 MB |
| Age rating | 4+ | 4+ |
| Developer | Yang Wang | 继岭 陈 |
Customer experience
Num Trainer
Audio Dubbing
In-app purchases
Num Trainer
No in-app purchases
Audio Dubbing
- VIP 1 Month$1.991 Month
- VIP 6 Months$3.996 Months
- VIP 1 Year$6.991 Year









