Comparison

Freckle by Renaissance vs Sumdog

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

Head to head
About

Freckle by Renaissance

This app provides personalized math, ELA, science, and social studies lessons for students. It adapts to each student's learning level, offering engaging content and real-world applications. Teachers benefit from a dashboard to track student progress and identify learning gaps.

Highlights
  • Personalized math lessons
  • ELA and science content
  • Social studies lessons
  • Adaptive learning engine
  • Diagnostic pre-tests
  • Teacher progress dashboard
  • Collaborative learning features
Features
Read full description

Freckle™ by Renaissance®: reach every student at their level. With Freckle, your students automatically work on the Math, ELA, Science and Social Studies lessons that are perfect for them. That way, they are always engaged and challenged, never facing material that is too difficult or easy for them. Freckle has: - Over 49,000 math questions aligned to Common Core and state standards, covering all of K-9 - Over 16,000 ELA questions aligned to Common Core and state standards, covering all of K-8 - Over 800 non-fiction articles that are written at 3 different levels, covering all of K-12 - A diagnostic pre-test so every student starts at the right level - An adaptive engine that automatically gives every student the perfect lesson - Collaborative features that encourage students to help each other - Motivating features to make sure students are engaged - Real-world questions that allow students to practice their math knowledge in exciting real-world settings - A powerful dashboard so teachers and administrators know exactly how students are performing across standards and skills. ==FEATURED BY== - The Wall Street Journal - CNN - EdWeek - EdSurge ==WHAT OTHERS ARE SAYING== I would recommend the Freckle app because it is one which is user friendly, and it taps into the different modalities of learning, and it also aids a teacher in differentiation. It is so structured, to point them to assistance, independent of the teacher. And that is what we want to promote: student to student interaction using peer body talk, turn and talk, sharing, and all those things. ~ Dwight Barnes, 4th grade math teacher The dashboard is amazing. Insights are exactly the quick pieces of information a teacher would want at first glance. The grouping tab is really clean looking and is exactly what teachers and administrators want to see on a daily basis. Teachers could literally print that out and use it in their lesson plans when talking about flexible grouping. It does a great job of presenting the information in a simple way. ~ Josh Shaw, Tech Director The teacher dashboard is in a very clear format. I like that I can see in one place how each student in the class is progressing. The green/yellow/red color code is a great visual as well as the specific number within the box. It's helpful that I can hover over each concept and see the explanation of that standard. Overall great product! ~ Jennifer Auten, 2nd grade teacher Freckle - I love the videos! Instead of showing them just a paragraph write up, it's just like a teacher sitting there with them and going over it. I think Freckle is a great app for classes and for schools that have a time-sensitive schedule and it gives them instant feedback and data that can be used in class the next day. ~ Jabari Bush, 5th grade math teacher One of my students got a double digit + double digit problem and he had never done that before. He asked me and I quickly showed him. Next thing I knew he was asking me how to regroup and was doing 2 digit + 2 digit with regrouping, which was extremely impressive to me at this point. I did take a look at the dashboard. It is fantastic. I showed one of my administrators who is also our Math IST and she is beyond impressed. I've been telling a lot of people about it and will continue to do so! Thanks again for making what is now the most vital part of my math class. ~ Jane Alukonis, 1st grade math teacher Freckle is a good solution for our students and our teachers, especially working in an RTI model, teaching CCSS and addressing learning needs within a differentiated instructional model. ~ Emily Klug, 5th grade math ==QUESTIONS? TALK TO US== support@freckle.com @learnfreckle

About

Sumdog

This app offers personalized math and spelling practice for children aged 5-14 through engaging games and adaptive learning. It uses diagnostic tests to tailor learning journeys and provides virtual rewards to motivate students. Parents can set up accounts for home use or connect to school-assigned work.

Highlights
  • Personalized adaptive learning
  • Engaging single and multiplayer games
  • Thousands of standards-aligned questions
  • Virtual coin rewards system
  • 3D avatar and house personalization
  • Diagnostic assessment
Features
Read full description

Make learning fun with Sumdog! Sumdog delivers highly engaging personalized practice for math and spelling, both in-school and at home. Suitable for children aged 5-14, our adaptive learning games and online rewards motivate children to learn and encourages regular practice. When children first use Sumdog, we run a short diagnostic test to provide a snapshot of their learning and areas for development. Our adaptive learning engine then uses the outcomes of the diagnostic to ensure each child’s starting point on Sumdog is at the right level. From this point, our sophisticated adaptive algorithms create a personalized learning journey based for each child based on their progress. - Over 30 engaging single and multiplayer games - Thousands of standards-aligned questions designed to consolidate and extend in-class learning - Virtual coin rewards to motivate children to learn - A 3D avatar, house and garden for children to personalize “I never thought an online program could do so much in such short bursts of time.” D. Hendershot, West Elementary, Kansas, US. Account set-up If your child has an account from school: Your child can log in with their details from their school. They’ll then be able to access any work that has been set by their teachers. If your child does not have an account from school: In the Sumdog app, parents can purchase a family plan covering up to 3 children. Once you’ve done this, you’ll create logins for your child to use the app. This gives them access to Sumdog’s games, and thousands of math, spelling and grammar questions. Subscription details: Your subscription starts with a free trial period and then changes to a subscription from $8.99 per month. No commitment period. Download the app and get started today! The amount will be deducted automatically every month via your Apple account. As long as the "Automatic renewal" feature is not disabled via the Apple account settings on your device, the subscription will automatically renew every month no later than 24 hours before your subscription period expires. Sumdog Terms: https://learn.sumdog.com/en-us/about-us/terms-of-use Sumdog Privacy: https://learn.sumdog.com/en-us/about-us/privacy-policy

Screenshots

Sumdog4 screens

Verdict

The call

The clearest difference is rating: Sumdog at 4.2 against Freckle by Renaissance's 3.3. Sumdog also leads on review sentiment (64% vs 40%) and device support (3 vs 1). Freckle by Renaissance's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On price, update cadence and ads 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. Sumdog sells 1 in-app purchase, starting at $8.99 per month. Freckle by Renaissance asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sumdog holds the better App Store score, 4.2 against 3.3. Both are backed by a comparable volume of ratings — 511 and 1.6K respectively. Written reviews point the same way: 40% of Freckle by Renaissance's written reviews are positive against 64% of Sumdog's.

UpkeepUpdate frequency

Freckle by Renaissance ships an update every 3 months, Sumdog every 2 months. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.

Scorecard7 real differences · 3 level
Freckle by Renaissance versus Sumdog: the parameters behind the verdict, then further details
ParameterFreckle by RenaissanceSumdog
PriceFreeFree
Rating3.3 (511 ratings)4.2 (1.6K ratings) — better
Positive reviews39.8% of reviews63.7% of reviews — better
Number of ratings5111.6K — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size1 MB134 MB
Age rating4+4+
DeveloperFreckle Education, Inc.Sumdog Ltd.

Customer experience

Freckle by Renaissance

All ratings511 ratings
Positive55.0%
Neutral6.3%
Negative38.7%
Written reviews88 reviews
Positive39.8%
Neutral8.0%
Negative52.3%

Sumdog

All ratings1,553 ratings
Positive78.3%
Neutral4.9%
Negative16.8%
Written reviews361 reviews
Positive63.7%
Neutral10.5%
Negative25.8%

User reviews

Freckle by Renaissance

From 511 App Store ratings

What we love

  • 💡 Customizable characters
  • 🚀 Wide range of educational content
  • 👍 Fun and competitive learning experience
  • 🚀 Accurate placement tests

Room to improve

  • 🐛 Glitches and bugs
  • 🐛 Keyboard issues
  • 🐛 Inconsistent scoring and feedback
  • 🐛 Laggy performance
  • 👎 Boring and repetitive content for older students

Sumdog

From 1.6K App Store ratings

What we love

  • 🎮 Fun and engaging games
  • 🏆 Competitive leaderboards
  • 🏠 Customizable avatar and house
  • 📚 Helps with learning math, spelling, and grammar
  • 🏫 Useful for schools and teachers

Room to improve

  • 🐛 Glitches and bugs
  • 🕰️ Slow loading times
  • 🔒 Limited access to premium features without subscription
  • 🤖 Weird or unappealing 3D character models
  • 🔍 Lack of instructions for some games

Bugs and requests

Freckle by Renaissance

Reported bugs

4 issues
  • Incorrect answers marked wrong
  • Freezing and crashing issues
  • Keyboard and screen layout problems
  • Inconsistent coin/progress tracking

Requested features

5 requests
  • Add more levels and content for each topic
  • Allow placement tests for adaptive learning
  • Improve save/login functionality to prevent data loss
  • Optimize for mobile devices
  • Hire human narrators for stories

Sumdog

Reported bugs

4 issues
  • Flower Defenders game not working properly
  • Goalz game not registering shots correctly
  • Sudden logout issues
  • Incompatibility with certain devices or browsers

Requested features

5 requests
  • Add more free games
  • Bring back old 2D games
  • Allow interaction with house and garden items
  • Improve multiplayer functionality
  • Add more customization options for avatar and house

In-app purchases

None

Freckle by Renaissance

No in-app purchases

1 purchases

Sumdog

Subscriptions1
  • Family Membership7 Days trial$8.991 Month

Questions

Is Freckle by Renaissance free?
Freckle by Renaissance is free to download, with no in-app purchases.
Is Sumdog free?
Sumdog is free to download, with in-app purchases available.
Which has better reviews, Freckle by Renaissance or Sumdog?
Sumdog is rated higher. Freckle by Renaissance averages 3.3 out of 5 from 511 ratings, while Sumdog averages 4.2 from 1.6K ratings.
Do Freckle by Renaissance or Sumdog have ads?
Neither Freckle by Renaissance nor Sumdog shows ads.
Which is updated more often, Freckle by Renaissance or Sumdog?
Freckle by Renaissance ships an update every 3 months, and Sumdog every 2 months. Most recently, Freckle by Renaissance was updated on October 15, 2026 and Sumdog on October 20, 2026.

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