BabyLex vs Solid Starts
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BabyLex
This app helps parents track their toddler's vocabulary development. It provides an estimated vocabulary size and percentile score compared to peers, based on research from universities. It's designed for monolingual English, German, or Norwegian speakers.
- Vocabulary size estimation
- Development tracking
- Percentile score comparison
- Research-backed algorithm
- Quick 2-minute tests
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We are parents and know how much fun it is to follow the development of your child. We are also researchers in child psychology and thus we have developed an app to estimate your toddler’s vocabulary size. Using the BabyLex app you can follow the development of your child by completing the test as often as you like and seeing how your child’s vocabulary has increased. The test currently allows you to follow your monolingual toddler in English from 16 to 30 months of age, in German from 18 to 30 months of age, or in Norwegian from 18 to 36 months of age. Once you have completed the test, you will see the result informing you the number of words your child likely produces from the long version of the vocabulary questionnaire (in other words, your child will likely produce that many words or more) and also a percentile score of your child – how she/he compares with other children of the same sex and age. We hope you have fun with this app – and we hope it helps you follow your child’s development in the same way we have followed ours! The research: The BabyLex app features a novel approach that allows researchers and parents to assess reliably a child’s vocabulary within 2 minutes (as opposed to up to 45 minutes for full-sized tests). The research behind the algorithm can be accessed here and has been developed jointly with the universities of Oslo and Göttingen. Further information can be accessed on www.babylex.eu . Note: it is an estimate so if you complete the test too soon after you completed a previous one, it is possible that the score may also go down. Don’t worry! This doesn’t mean your child has forgotten words – there is a margin of error for the estimate, i.e., a range where the app can make inaccuracies, and when you test the same child in shorter intervals, it is likely that the vocabulary estimate falls within this margin of error. That doesn’t mean you can’t test the same child – please do so, but this is just to say don’t worry! Don’t also worry if your child doesn’t say most of the words on the list – the words are chosen at random and are not tailored to the capabilities of particular age-groups. So, it is just as likely that your child knows all the words on the list or none of the words on the list depending on how old s/he is and what words were randomly chosen by the app to test. We will still be able to provide a reliable estimate of your child’s vocabulary. Important disclaimer: This is merely an estimate provided by the app. It is not a clinical evaluation of your child’s language development. We are not doctors, we are researchers who are also parents and want to use our research to allow parents an insight into the development of their child. If you want a clinical evaluation of your child, please ask your pediatrician for contacts to the clinicians who can provide you such an evaluation.
Solid Starts
This app guides parents through introducing solid foods to babies using baby-led weaning or transitioning from purees. It offers a comprehensive food database, meal plans, recipes, and tracking tools developed by pediatric experts.
- Baby-led weaning guidance
- Extensive first foods database
- Personalized meal plans
- Baby food tracker
- BLW recipes and meal ideas
- Expert pediatric advice
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App of the Day – Apple Best Apps for Parents – Apple Trusted by 6M+ around the world Solid Starts provides you everything you need to know about introducing solid foods to babies with baby led weaning, BLW, or transitioning from spoon feeding or purées to finger foods. Built by a team of board-certified pediatricians, infant feeding therapists, swallowing specialists, allergist and dietitian to guide your child’s food journey. This is your trusted tool to feel confident when starting solids and creating joyful mealtimes. THE #1 TRUSTED BABY FOOD DATABASE IN THE WORLD Learn how to safely introduce 400+ foods to baby in our First Foods® Database. Each food has detailed nutrition information, choking & allergen guidance, instructions on how to cut and serve the food based on baby's age, and videos of real babies eating. Updated by our team of pediatric professionals so you have the latest evidence-backed information. EVERYTHING YOU NEED TO START BABY LED WEANING Easy introduction of baby’s first 100 foods with simple meals for each food to take the guesswork out of meal planning. Learn with access to our library of articles and guides about infant CPR, recognizing signs of readiness for eating, fantastic first foods, introducing allergens, cup drinking, and more.. PERSONALIZED FOR YOUR BABY’S UNIQUE JOURNEY Get our guided introduction to 100 first foods—complete with tailored meal plans that include recommended foods and recipes by our pediatric team of experts. We suggest new foods to try that gradually build your baby’s ability to bite and chew a variety of textures—and explain exactly how to serve them to make the most of mealtime. Common food allergens are introduced along the way, with step-by-step guidance to help you build confidence with each taste. A PEDIATRIC PRO IN YOUR POCKET Developed by a team of pediatricians, infant feeding therapists, swallowing specialists, allergist and dietitian to bring you the latest expert guidance for feeding your baby. BABY FOOD TRACKER Record baby's progress with a digital food log, log foods tried, track baby's favorite foods, make a list of foods you'd like to try later, and track reactions or sensitivities which you can download to share with doctors and caregivers BLW MEALS AND RECIPES 300+ BLW ideas and easy baby recipes, toddler recipes and family recipes. Explore categories including baby’s first meals, iron-rich ideas, and quick breakfasts ideas. WHAT PARENTS ARE SAYING “It’s really the only app one NEEDS to have for a baby.” - Stephanie “Every new parent needs this app! As a first time mom, I had zero idea of how to start solids. The content provided by Solid Starts gave me the confidence to start solids when my baby was ready shortly after 6 months!” - Shelley “The Solid Starts app is one of the most used on my phone, as I’m constantly checking to make sure I’m preparing food for my daughter safely and to keep an eye out for what to watch for.” - Phoebe “You gave me the confidence to do baby led weaning, and also stand my ground with grandparents/child care of how I want my child to be fed and food served.” - Laura SUBSCRIPTION OPTIONS The Solid Starts First Foods® Database is free to download and use. Upgrade to unlock all the features that make starting solids even easier with our All Access monthly or yearly plan, which you can try with a free trial. All subscriptions can be canceled anytime. Payment will be charged at confirmation of purchase. Subscription automatically renews unless canceled or turned off at least 24 hours before the end of the current period. Manage your subscriptions by visiting your account settings in the App Store. Prices may vary per country and actual charges may be converted to your local currency depending on the country of residence. Have feedback or questions? Please send contact us at www.solidstarts.com/contact Terms of Service: https://solidstarts.com/terms-of-use/ Privacy Policy: https://solidstarts.com/privacy-policy-2/
Screenshots
Verdict
The clearest difference is rating: Solid Starts at 4.9 against BabyLex's 1.8. Solid Starts also leads on review sentiment (47% vs 20%) and update cadence (every 8 days vs every 2 months). BabyLex's advantage is in-app purchases (none vs 10) and iOS requirement (8.0 vs 16.4). 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
Both are free to download. Solid Starts sells 9 in-app purchases, starting at $19.99 per month. BabyLex asks for nothing beyond the download.
Solid Starts holds the better App Store score, 4.9 against 1.8. That said, the two scores are not equally well evidenced: Solid Starts has 47K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 20% of BabyLex's written reviews are positive against 47% of Solid Starts's.
BabyLex ships an update every 2 months, Solid Starts every 8 days. The most recent releases landed on October 13, 2026 and November 3, 2026 respectively.
| Parameter | BabyLex | Solid Starts |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (5 ratings) | 4.9 (47K ratings) — better |
| Positive reviews | 20.0% of reviews | 46.6% of reviews — better |
| Number of ratings | 5 | 47K — better |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #31 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 1.1 GB | 106 MB |
| Age rating | 4+ | 4+ |
| Developer | Universitetet i Oslo | SolidStarts LLC |
Customer experience
BabyLex
Solid Starts
Bugs and requests
BabyLex
Not enough reviews yet to summarise bugs or requests.
Solid Starts
Reported bugs
3 issues- App crashes when trying to access certain features
- Search function not working as expected
- Data loss when updating or reinstalling the app
Requested features
4 requests- Add ability to share/sync data between accounts
- Improve food logging/tracking experience
- Provide more filtering and sorting options
- Include more international/cultural foods
In-app purchases
BabyLex
No in-app purchases
Solid Starts
- Unlimited Monthly3 Days trial2 variants$19.991 Month
- Tracker$19.991 Month
- Compass3 Days trial$19.991 Month
Show 6 moreShow fewer
- Unlimited Yearly1 Year trial$99.991 Year
- Anniversary Compass Yearly$99.991 Year
- Yearly Subscription3 Days trial$99.991 Year
- Compass Yearly7 Days trial$99.991 Year
- Seasonal Premium Yearly$99.991 Year
- Unlimited Yearly7 Days trial$99.991 Year
Questions
Is BabyLex free?
Is Solid Starts free?
Which has better reviews, BabyLex or Solid Starts?
Do BabyLex or Solid Starts have ads?
Which is updated more often, BabyLex or Solid Starts?
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