Viewable vs Drowning Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Viewable
This app magnifies text and images for users with low vision, offering adjustable brightness and color modes. It allows for comfortable viewing at various distances, making reading material more recognizable for those with visual impairments.
- Magnifies text and images
- Seven levels of magnification
- Variable brightness control
- Color and high contrast modes
- Adjustable viewing distances
- Full visual field display
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Viewable can be used as a low vision aid to magnify text or images. It provides seven levels of magnification, variable brightness and color or high contrast black and white. Objects can be viewed with the desired magnification at a typical reading distance. Alternatively, objects can be held as close as 4 inches. There are two main advantages offered by Viewable: 1. Close viewing distances do not cause the discomfort or eye strain that is associated with high power reading glasses. 2. When viewed at higher magnification and at a near distance, objects will fill the entire visual field. This allows images or reading material to be more easily recognized for people with low visual acuity, or with patches of vision loss such as in macular degeneration or diabetic retinopathy.
Drowning Math
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Solve fast or sink. Drowning Math turns mental arithmetic into a survival race: every right answer lifts you up, every mistake drags you under. How long can you stay afloat? THE DAILY CHALLENGE One board, the whole world. Everyone gets the same puzzles today — climb the daily leaderboard before it resets at midnight, and come back tomorrow for a fresh one. FIVE WAYS TO TRAIN • Classic — survive as long as you can; difficulty ramps as you climb • Chain — each answer becomes the start of the next problem • 60 Seconds — no lives, pure speed: score as much as you can before the clock runs out • Sudden Death — one life, no second chances • Training — no lives, no timers; practice at your own pace A REAL BRAIN WORKOUT Addition, subtraction and multiplication with smart distractor answers, so guessing never works. Sessions take under a minute — perfect for a coffee break or the bus. GLOBAL LEADERBOARDS One leaderboard per mode, plus a fresh Daily board every day. Beat your best, then beat the world. BUILT FOR SPEED No sign-up, no subscription, no lessons. Tap play and you're in — and an optional daily reminder keeps your streak alive. Who it's for: • Adults who want a quick daily mental math workout • Students prepping for exams or numerical job tests • Anyone who wants their brain sharper than their calculator Dive in — the water is rising. Today's board is waiting.
Screenshots
Verdict
The clearest difference is ads: Viewable at none against Drowning Math's shown. Viewable also leads on iOS requirement (13.2 vs 16.4). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Viewable | Drowning Math |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 19 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.2 — better | 16.4 |
| Further details — not scored | ||
| Size | 1 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Howard Ellenberger | Brothapps, SL |
In-app purchases
Viewable
No in-app purchases
Drowning Math
No in-app purchases









