Comparison

ASL Speed Spell vs Bubo Books

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ASL Speed Spell

Improve American Sign Language fingerspelling with this app. Practice over 500 words with individual videos, adjustable speeds, and categorized word lists. Track your progress and learn letters with multiple perspectives.

Highlights
  • Practice over 500 words with individual videos
  • Adjustable fingerspelling speed
  • Categorized word practice (names, animals, countries)
  • Alphabet reference with multiple perspectives
  • Progress tracking and statistics
  • Daily practice reminders
Features
Read full description

ASL Speed Spell allows American Sign Language learners to improve their fingerspelling speed. Whether you're newer to the ASL alphabet or have been studying for years, this free app can help learners at all levels understand fingerspelling faster and with better accuracy. How is this ASL app different from the rest? Each fingerspelled word is individually recorded as its own video, so you can watch smoothly fingerspelled words at the speed of your choice. Plus, you can choose among several categories, like 'names', 'animals', and 'countries', to help add context to the word! App Features: - Practice fingerspelling over 500 words, each with their own video. - Can't figure out the answer? Replay the video, or 'give up' to see what the word was. - Adjust the speed of your practice - from Beginner all the way up to Expert. - Choose which category of words you want to practice, so you have context behind the word. - Forget how to sign a letter? The ‘alphabet’ page shows you each letter from multiple perspectives, including common variations. - The Statistics page helps you keep track of your streaks, word counts, and more. - Adjust your settings for daily practice reminders, statistics, and more. - Not a fan of ads? A small one-time in-app purchase removes ads from the app forever. This app offers a paid premium option, available as either a monthly subscription or a one-time lifetime purchase. For the subscription option, subscriptions renew within 24 hours of the subscription period ending, and a subscription purchase will be charged through your iTunes account. Manage at any time using Account Settings in iTunes. Privacy Policy and Terms of Use can be found at https://www.aslspeedspell.com/privacy.php

About

Bubo Books

Features
Read full description

Bubo Books is a calming storytime app designed for children aged 0 – 8, helping families enjoy screen time in a healthier, more mindful way. Guided by Bubo the owl, children can explore a growing library of classic tales and soothing bedtime stories with engaging karaoke-style narration that encourages listening, reading, and participation without overstimulation. Unlike fast-paced children’s media designed to trigger constant dopamine hits, Bubo Books creates a peaceful digital environment focused on imagination, literacy, emotional calm, and quality family time. Our “anti-dopamine” approach helps children slow down, focus, and enjoy stories naturally. Features include: • Classic children’s stories and timeless tales • Karaoke-style read-along narration • Calm, child-friendly experience • Designed for ages 0–8 • Gentle pacing with no overstimulating content • Encourages reading confidence and listening skills • Safe and family-focused storytelling environment Whether it’s bedtime, quiet time, or learning time, Bubo Books helps children build a positive relationship with stories and reading. Join Bubo the owl and discover a calmer way to enjoy children’s media. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ASL Speed Spell4 screens
Bubo Books4 screens

Verdict

The call

The clearest difference is ads: Bubo Books at none against ASL Speed Spell's shown. Bubo Books also leads on update cadence (every 6 days vs every 3 weeks) and iOS requirement (13.0 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ASL Speed Spell sells 3 in-app purchases, starting at $1.99 per month and Bubo Books sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ASL Speed Spell ships an update every 3 weeks, Bubo Books every 6 days. The most recent releases landed on November 12, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
ASL Speed Spell versus Bubo Books: the parameters behind the verdict, then further details
ParameterASL Speed SpellBubo Books
PriceFreeFree
Rating4.8 (348 ratings) — better—
Positive reviews88.0% of reviews—
Number of ratings348 — better—
Update frequencyEvery 3 weeksEvery 6 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.413.0 — better
Further details — not scored
Size121 MB85 MB
Age rating4+4+
DeveloperAmanda O'NealBubo Books Pty Ltd

Bugs and requests

ASL Speed Spell

Reported bugs

1 issue
  • Keyboard hides input field on iPad

Requested features

5 requests
  • Add numbers for practicing fictional data
  • Reduce ad frequency
  • Allow background playback
  • Add more words
  • Improve iPad keyboard input visibility

Bubo Books

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

ASL Speed Spell

Subscriptions2
  • Premium Ad-Free Monthly$1.991 Month
  • Premium Ad-Free Yearly$5.991 Year
One-time1
  • Remove Ads$5.99
2 purchases

Bubo Books

One-time2
  • Lifetime Premium$45.00
  • Lifetime Premium$59.00

Questions

Is ASL Speed Spell free?
ASL Speed Spell is free to download, with in-app purchases available.
Is Bubo Books free?
Bubo Books is free to download, with in-app purchases available.
Do ASL Speed Spell or Bubo Books have ads?
ASL Speed Spell shows ads; Bubo Books does not.
Which is updated more often, ASL Speed Spell or Bubo Books?
ASL Speed Spell ships an update every 3 weeks, and Bubo Books every 6 days. Most recently, ASL Speed Spell was updated on November 12, 2026 and Bubo Books on October 31, 2026.

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