Say BLUB! vs Aha! Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Say BLUB!
Explore the ocean's wonders with interactive learning about sea creatures. Swipe through beautiful photos, hear names pronounced, and listen to authentic animal sounds. Designed for children to build vocabulary and develop an appreciation for marine life.
- Interactive sea creature learning
- Clear pronunciation of names
- Authentic animal sounds
- Stunning sea creature photos
- 60+ sea creatures to discover
- Offline functionality
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Introduce your child to the wonderful world under the sea! This app is the perfect learning companion for curious kids. Swipe through beautiful sea creature photos, hear their names spoken clearly, and listen to authentic sounds from dolphins, whales, seals, and more! INTERACTIVE LEARNING • Tap to hear sea creature names pronounced clearly • Listen to real sounds from dolphins, whales, seals, and more • See stunning photos of each sea creature • Visual feedback encourages participation 60+ SEA CREATURES TO DISCOVER Start with 23 free sea creatures, then explore 3 themed expansion packs: • Tropical Reef - clownfish, sea turtles, and colorful coral reef dwellers • Freshwater Friends - river dolphins, otters, and lake creatures • Ocean Giants - whales, sharks, and the largest creatures in the sea DESIGNED FOR KIDS • Simple swipe navigation perfect for little fingers • No ads or distractions • Kid-friendly ocean photography • Works offline after download PERFECT FOR • Building vocabulary and pronunciation • Learning about ocean life and marine biology • Developing an appreciation for sea creatures • Quality screen time that's actually educational • Car rides, waiting rooms, and quiet time At home or on the go, we turn screen time into learning time. Watch your child light up as they discover new sea creatures and their sounds!
Aha! Math
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Turn the words into a "picture" — and your math intuition shoots way up. Aha! Math teaches one powerful idea: every word problem can be redrawn as rectangles. Once you can see the problem, the answer stops being a guess. ■ Read it right, with the Six-Color Marker Method Before solving, you mark up the question yourself — splitting it into chunks and colouring each one. What you are looking for gets its own colour. The app never splits the sentence for you, because deciding where to cut is the part that builds reading skill. Tap "Aha! in Color" any time to see one sample way to split it. ■ See it as an area diagram Height x width = area. Price per item x how many. Points per question x how many questions. Legs per animal x how many animals. One picture handles all of them, so what you learn on one problem carries over to the next. ■ Hints that build the picture with you Hints add one line to the diagram at a time, until the rectangle whose height and width you already know appears. On some problems the final hints work the calculation through, so you can check your answer. Prefer words? "Another Way: Step by Step" walks through the same problem as a guided sequence of small questions. ■ Practice at your level - Learn the Method — Basics and Advanced - Six-Color Marker Method — Master Level - Practice Problems — Basic, Intermediate and Advanced - Test Mode and Challenge Mode, with a timer and randomly chosen problems ■ Track what is growing Every answer, every marking attempt and every hint is recorded, so you can see which problems still need another look. ■ Pricing All features are free for 14 days. After that, a subscription keeps everything unlocked. Monthly, 3-month, 6-month and annual plans are available. There are no ads anywhere in the app. Please note: the app is displayed in English. Made by Arc Shingakukai, a Japanese cram school, from the method it uses with its own students. ■ Subscription terms Aha! Math Premium is an auto-renewable subscription, available as monthly, 3-month, 6-month and annual plans. Current prices are shown on the Subscription screen inside the app. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. You can manage or cancel it in the Settings app: tap your name, then Subscriptions. Deleting the app does not cancel the subscription. Privacy Policy: https://www.arc-edu.com/aha-math-privacy-policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Aha! Math at weekly against Say BLUB!'s fortnightly. On price, 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
Both are free to download. Say BLUB! sells 5 one-off in-app purchases and Aha! Math sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Say BLUB! ships an update fortnightly, Aha! Math weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | Say BLUB! | Aha! Math |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 15 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | Things4Kids LLC | Hiroshi Matsumoto |
In-app purchases
Say BLUB!
- Tropical Reef$0.99
- Ocean Giants$0.99
- Freshwater Friends$0.99
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- Deep Sea$0.99
- All Sea Creatures Bundle$2.99
Aha! Math
- Monthly$1.991 Month
- 3 Months$4.993 Months
- 6 Months$9.996 Months
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- Annual$14.991 Year









