Readigo vs Kids Shelf: free and on-device, or scored sentence by sentence?
Kids Shelf is a free reading, math and science app for ages 4-13 that says speech recognition runs only on the device. Readigo is for ages 6-12, from $9.99/mo. An honest comparison.
Quick answer: Kids Shelf is a free app for ages 4 to 13 on iPhone, iPad and Android. It listens while a child reads aloud, and its developer says speech recognition runs only on the device, with no audio sent anywhere and no account needed. It has since grown into K-8 math and science lessons too. Readigo is a paid iPhone and iPad app for ages 6 to 12 that does one thing: it scores every sentence a child reads aloud. If a free, on-device app meets your needs, Kids Shelf is a strong choice; Readigo is for families who want the per-sentence score and parent report and accept cloud scoring.
Kids Shelf is the nearest thing to Readigo on the question parents ask most about voice apps: where does my child's voice go? Its developer says it never leaves the device, and the App Store privacy label says no data is collected. Readigo scores audio in the cloud and deletes it right after scoring. If that difference decides it for you, Kids Shelf wins that point outright.
The other differences are about breadth and depth. Kids Shelf now covers K-8 math and science lessons as well as reading, and it is free. Readigo stays on reading aloud and gives a score in percent after every sentence, the misread words marked and the skipped words crossed out. Kids Shelf is also newer and has no ratings on the US App Store yet, so there is little outside evidence for either.
At a glance
Readigo
- Pricing
- $9.99 per month or $59.99 per year in the US App Store. No free trial, no free tier. iOS only.
- Age range
- 6 to 12, with the core of the library aimed at 7 to 10.
- Best for
- Children who can already decode and need regular read-aloud practice, parents who want a score for each sentence and a report of recently misread words, and anyone reading in Spanish, French, German, Polish or Ukrainian.
Kids Shelf
Free reading app for ages 4-13 that listens to a child read aloud, with speech recognition that its developer says runs only on the device, plus K-8 math and science lessons.
- Pricing
- Free to download and use, per its FAQ and App Store listing, which shows no in-app purchases. The FAQ says premium content or features may come later. iPhone, iPad and Android.
- Age range
- 4 to 13, kindergarten to 8th grade, with stories in three reading levels.
- Best for
- Families who want a free app, who want the child's voice kept on the device, who also want K-8 math and science lessons for homeschool, or whose child has speech sounds to track: it tracks 16 speech patterns used by speech-language pathologists and is more lenient on sounds the child finds hard. It also works fully offline.
- Where it falls short
- It is a single developer's app, only a few months old (first released February 2026), with no ratings on the US App Store yet and English only. It is not a phonics program, and its reading feedback is words turning green plus 0-3 stars, not a score for each sentence. Its own FAQ says it is not a substitute for speech therapy. Its privacy claims are the developer's own and we have not tested them.
Side-by-side comparison
| Feature | Readigo | Kids Shelf |
|---|---|---|
| Cost | $9.99/mo or $59.99/yr | Free; premium features may come later |
| Platforms | iPhone, iPad | iPhone, iPad, Android |
| Age range | 6-12 | 4-13 (K to 8th grade) |
| Listens to child read aloud | Yes | Yes |
| Where the voice is processed | In the cloud; audio is deleted right after scoring, no recordings kept | On the device only, per the developer; no audio sent to any server |
| Works offline | No, it needs a connection to score | Yes, including speech recognition |
| What the child sees | A score in percent after each sentence, misread words marked, skipped words crossed out, try again | Words turn green as read; 0-3 stars for accuracy; tap a word for its pronunciation and definition |
| Speech-sound tracking | No | 16 speech patterns, with per-sound leniency |
| Other subjects | Reading only | K-8 math and science lessons, word games |
| Story languages | English, Spanish, French, German, Polish, Ukrainian | English |
| US App Store ratings | Too few to quote | None yet (2026-11-01) |
When to choose each
Choose Readigo if
You use an iPhone or iPad, you want a score for every sentence and the words to practice, and your child reads in a language other than English. You accept cloud scoring with the audio deleted right after, and the subscription.
Choose Kids Shelf if
You want free, you want your child's voice to stay on the device, or you are on Android. It also suits homeschoolers who want K-8 math and science next to reading, and children with specific speech sounds to track.
Using both
Nothing stops a family trying Kids Shelf first, since it costs nothing, and adding Readigo if the child needs more structured read-aloud scoring in a school language.
What you actually see in the app
The progress report and the parent view - what shows up after an ordinary week of five-minute sessions.
Little Reader's Report
Last 4 weeks
Progress Summary
READING PROGRESS
Sofia, age 7
Apr 15–21
This week
+12% ↗What she read
Charlie the Chef
Tue · 5 min
Boots and the Puddle
Wed · 6 min
The Time-Traveling Library
Fri · 8 min
Words that were tricky
All three landed on retry.
Frequently asked
Does Kids Shelf keep my child's voice on the device?
Its developer says so: speech recognition runs only on the device, audio is discarded immediately, and no audio is sent to any server. The US App Store privacy label says no data is collected. We have not tested this independently. Readigo scores audio in the cloud and deletes it right after scoring, with no recordings kept and no voice profiles.
Is Kids Shelf really free?
Its FAQ says it is free to download and use, and the US App Store listing shows no in-app purchases. The FAQ adds that premium content or features may be offered in the future. Readigo costs $9.99 a month or $59.99 a year in the US App Store, with no free trial.
Which one is better for a child with a speech difficulty?
Kids Shelf is built around it: it tracks 16 speech patterns and counts a substituted sound such as "wabbit" for "rabbit" as correct while noting it in the speech report. Its own FAQ says it is not a replacement for speech therapy. Readigo has no speech-sound tracking, so for a child with specific sounds to work on, Kids Shelf is the closer fit.
Which has more independent reviews?
Neither has many. Kids Shelf had no ratings on the US App Store on 2026-11-01. Readigo has too few ratings to quote a number. Try either with your own child before relying on a review.
Do both work on Android?
Kids Shelf does: it is available on iPhone, iPad and Android. Readigo is iPhone and iPad only, with no Android app.
$9.99/mo or $59.99/yr. Cancel anytime.
Last updated 2026-11-01.