Comparison

Keydo App vs Ello 2.0

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

Head to head
About

Keydo App

This app locks children's devices until they complete educational challenges set by parents. It helps foster responsibility and problem-solving skills by making learning a prerequisite for screen time.

Highlights
  • Age-appropriate educational challenges
  • Parental control over device access
  • Customizable learning questions
  • Progress tracking for children
  • Screen time rewards for learning
  • Develops responsibility and problem-solving
Features
Read full description

KeyDo - Learn. Earn. Unlock. Turn screen time into learning time. Every parent knows the daily standoff: reminders, negotiations, timers, and "just one more minute." KeyDo changes the pattern. Instead of simply limiting device use, KeyDo turns your child's favorite apps into something they earn by answering short, fun learning challenges first. Less arguing. More learning. Better habits. And they're not alone. Key the Fox, your child's clever, encouraging learning buddy, cheers them on at every step, turning study time into a quest instead of a chore. How It Works Learn Kids complete quick, age-appropriate challenges matched to their grade and subject, with read-aloud, tap, drag, and spell activities that feel like a game. Earn Every correct answer earns XP. Answer in a row to build a streak and earn even more, connecting effort directly to reward. Unlock When the learning goal is met, kids trade their XP to unlock real screen time on approved apps, safely powered by Apple Screen Time. Why Families Love KeyDo - Earned screen time: reframes screen time from something kids demand into something they achieve. - Interactive challenges: math, reading & language, science, and brain-agility puzzles that keep kids engaged. - XP, streaks & leaderboard: playful motivation that makes kids want to come back and learn. - AI Homework Helper: snap a photo of any worksheet and get instant, teacher-style feedback. - Real parental controls: you choose which apps are locked and how they're unlocked, backed by Apple's own Screen Time. - Progress dashboard: track questions answered, accuracy, and growth at a glance, and adjust the curriculum any time. Designed for Parents Set it up once and let learning do the gatekeeping. From an easy dashboard, customize learning goals, pick restricted apps, monitor progress, and celebrate wins, all without the constant reminders. More Than Screen-Time Management KeyDo helps kids build habits that last well beyond academics: - Self-motivation - Responsibility - Critical thinking - Perseverance - Confidence By making learning the front door to screen time, KeyDo empowers kids to take ownership of their growth, and gives parents peace of mind that every minute has been earned. Designed for children ages 5 to 12. Available on iPhone and iPad. KeyDo - Learn. Earn. Unlock. Subscription Information KeyDo offers auto-renewable subscriptions to unlock full access: - Weekly, Monthly, and Yearly plans - Exact price and duration are shown in the app before you purchase. Payment is charged to your Apple Account at confirmation of purchase. Your subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase. Any unused portion of a free trial, if offered, is forfeited when you purchase a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://keydo.io/privacy

About

Ello 2.0

This educational app uses AI to personalize reading and math lessons for children aged 4-9. It listens to children read aloud, identifies mistakes, and adapts content in real-time. Features include daily quests, a large book library, and early math exercises.

Highlights
  • AI reading tutor listens and corrects in real-time
  • Adaptive learning adjusts to child's level
  • 1,200+ decodable books based on Science of Reading
  • Daily personalized reading and math quests
  • Early math skills development
  • Supports pre-readers and up to Grade 5
Currently charting
Read full description

Your child is unique. Their learning should be too. More than games. Real teaching. Ages 4–9. Ello listens to your child, catches mistakes, and adjusts to their level — built by literacy researchers and speech scientists. Most kids' apps are tappable games with a quiz bolted on. Ello actually teaches. It listens to your child read out loud, catches mistakes, and adjusts the next session based on what they got wrong. Featured by Good Morning America, Time Magazine, and Common Sense Media. Free to start. No ads. Ever. Download and explore Ello's reading games, math games, and Daily Quests completely free. How Ello actually teaches: Ello's AI listens to your child read out loud, catches mistakes, and adjusts the next session to match. No other reading app does real-time listening, a full book library, and early math in a single daily session. - Daily Quests — a personalized mix of reading and math, up to 15 min per day - 1,200+ decodable books built on the Science of Reading - Math for kids — counting, numbers, and addition - AI reading tutor — listens, corrects, and guides in real time - Pre-K ready — supports pre-readers starting in pre-K - Adaptive learning — meets your child exactly where they are - Kid-safe — no ads, no in-app purchases Reading, math, and a reason to keep coming back. Ello covers phonics, early reading, and math for kids from preschool through Grade 5. Whether your child is a pre-reader learning the alphabet, a kindergartener building phonics skills, or a 2nd grader who needs a math tutor — Ello adapts to them. "She struggled with reading, but Ello makes it fun. Now she asks to read every day." — Jamie M. "My son's reading level jumped two grades in three months." — Lola P. Reading tutor. Math tutor. One app. Download free — your child's first Daily Quest is waiting.

Screenshots

Keydo App4 screens
Ello 2.04 screens

Verdict

The call

The clearest difference is rating: Ello 2.0 at 4.6 against Keydo App's 4.0. Ello 2.0 also leads on in-app purchases (none vs 3) and update cadence (daily vs every 4 months). Keydo App's advantage is review sentiment (100% vs 80%). On price, ads 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. Keydo App sells 3 in-app purchases, starting at $2.99 per 7 days. Ello 2.0 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ello 2.0 holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Ello 2.0 has 20 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 100% of Keydo App's written reviews are positive against 80% of Ello 2.0's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Keydo App ships an update every 4 months, Ello 2.0 daily. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

Scorecard8 real differences · 3 level
Keydo App versus Ello 2.0: the parameters behind the verdict, then further details
ParameterKeydo AppEllo 2.0
PriceFreeFree
Rating4.0 (4 ratings)4.6 (20 ratings) — better
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings420 — better
Update frequencyEvery 4 monthsDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank—#141 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size521 MB193 MB
Age rating4+4+
DeveloperKeydo, Inc.Ello Technology, Inc.

Customer experience

Keydo App

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Ello 2.0

All ratings20 ratings
Positive85.0%
Neutral10.0%
Negative5.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

3 purchases

Keydo App

Subscriptions3
  • Weekly$2.997 Days
  • Monthly$9.991 Month
  • Yearly Subscription$110.991 Year
None

Ello 2.0

No in-app purchases

Questions

Is Keydo App free?
Keydo App is free to download, with in-app purchases available.
Is Ello 2.0 free?
Ello 2.0 is free to download, with no in-app purchases.
Which has better reviews, Keydo App or Ello 2.0?
Ello 2.0 is rated higher. Keydo App averages 4.0 out of 5 from 4 ratings, while Ello 2.0 averages 4.6 from 20 ratings.
Do Keydo App or Ello 2.0 have ads?
Neither Keydo App nor Ello 2.0 shows ads.
Which is updated more often, Keydo App or Ello 2.0?
Keydo App ships an update every 4 months, and Ello 2.0 daily. Most recently, Keydo App was updated on October 5, 2026 and Ello 2.0 on October 7, 2026.

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