Spell & Listen vs Build
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spell & Listen
This educational app helps children aged 3-10 learn and spell over 550 everyday words. It uses interactive flashcards with real pictures, professional voiceovers, and sound cues to reinforce learning and track progress.
- 550 photo flashcard word puzzles
- Professional studio-recorded voiceovers
- Interactive letter spelling with sound cues
- Progress tracking with 'Stars'
- Dictionary definitions for words
- Organized by difficulty
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-------------- DESIGNED FOR KIDS 3 - 10 YEARS OLD -------------- Hi Parents, This app will help your child recognize, spell, pronounce and learn more about 550 everyday words to strengthen his/her vocabulary. It does that by announcing and showing your kid a beautiful, real picture with the letters that make it. As your child touches the letters and spells the picture correctly, the word begins to form at the top. When the kid completes the whole word (and even phrases), the word is spoken again in a broadcast quality, studio recorded voice of a professional voice talent. Your child can listen to this voice again simply by touching a completed card. Your child can learn more about the spelled word by touching the 'dictionary' symbol. This app is suitable for growing kids that know the alphabets and now want to learn more words. It is a nice app for preschoolers, kindergarten, elementary and primary school children. The words are organized in increasing order of difficulty. As your boy / girl completes a card he / she can go on to the next card simply by swiping to left. Your child can see all his / her completed cards at any time by swiping to right. FEATURES: 1. Simple, clear, to-the-point design focused on learning. 2. 550 photo flashcard word puzzles organized in increasing order of difficulty. 3. Each card speaks in broadcast quality, studio recorded voice of a professional voice talent when it is shown and again when the word is spelled completely. 4. Musical short sound is played when correct letter is touched. A car beep is played when a wrong letter is touched. 5. A ‘Star’ and cheering sound is given after completing every 25 words. The collected ‘Stars’ show prominently on the starting page. You can easily see the progress of your child by just looking at the ‘Stars’. 6. Swipe to go to next word picture puzzle or review all previously spelled cards. A musical short sound is played. 7. See dictionary description of the word after spelling it. 8. Easily reset to start over. SUITABILITY: Suitable for kids who know their alphabets. Generally preschoolers, kindergarten, elementary and primary school kids of ages 3 to 10 years. ABOUT SAI SERVICES LLC: Sai Services LLC is a venture started by a parent and a daycare provider to help educate and entertain children. Kindly search “Sai Services LLC” in your iPhone / iPad to find all our apps. SUPPORT & SUGGESTIONS: Since it's first launch in August 2009, Spell & Listen Cards has been regularly updated and refined with customer feedback. Kindly send your comments to: SupportSaiServices@gmail.com . Thank you.
Build
This app offers short, focused math drills for addition, subtraction, multiplication, and division. It provides instant feedback and tracks progress through engaging sessions designed for quick practice.
- Short, focused math practice sessions
- Master addition, subtraction, multiplication, division
- Instant feedback with haptics, color, and sound
- Smart question rotation for confidence
- Progress tracking and summaries
- Works offline, no ads, no accounts
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Turn 1–5 minutes into real math practice. Build‑A‑Math is a focused drill app for mastering addition, subtraction, multiplication, and division. Tap answers on the large on‑screen keypad, get instant feedback, and watch your progress bar fill as you work. # Why it works - Short, focused sessions (1–5 minutes) keep practice consistent and stress‑free. - Instant feedback with gentle haptics, color, and sound—celebrate correct answers and learn from mistakes. - Smart rotation of questions: a small set of problems stays in play; fast, correct solves are retired so you can move forward confidently. - Results you can feel: a cheerful summary shows Questions tried and Mastered today after each session. # Designed for real life - Pick the operations you want: +, −, ×, ÷. - Auto‑check answers as you type (single‑digit checks instantly; two‑digit checks on the second digit). - Works great in portrait or landscape on iPhone and iPad. - No ads. No accounts. Works offline. Perfect for classroom warm‑ups, brain breaks, and at‑home practice—anytime you have a minute (or five).
Screenshots
Verdict
The clearest difference is monetization model: Build at free against Spell & Listen's paid. Build also leads on update cadence (fortnightly vs every 3 months) and rating (4.7 vs 4.3). On price, ratings volume, ads and in-app purchases 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.
Build holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 6 and 3 respectively.
Spell & Listen ships an update every 3 months, Build fortnightly. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | Spell & Listen | Build |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | 70.0% of reviews | — |
| Number of ratings | 6 — better | 3 |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 62 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Sai Services LLC | Weiran Ye |
Customer experience
Spell & Listen
Build
In-app purchases
Spell & Listen
No in-app purchases
Build
No in-app purchases









