Comparison

Infant Sleep Info vs Powerly

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

Head to head
About

Infant Sleep Info

Access research-based information on infant sleep, safety, and development. This app explains baby sleep patterns and safe sleep guidelines, featuring an interactive bed-sharing tool and an optional sleep diary. It serves as a valuable resource for parents and health professionals.

Highlights
  • Research-based infant sleep information
  • Safe sleep guidance explanations
  • Interactive bed-sharing safety tool
  • Optional sleep diary
  • Links to info sheets and web resources
  • Teaching tool for health professionals
Features
Read full description

Up-to date research-based information on infant sleep, safety, and development from the Infant Sleep Info Source website (www.isisonine.org.uk). This informational app explains how and why babies sleep as they do, and explains the reasons for safe sleep guidance. Includes an interactive bed-sharing safety tool, an optional sleep diary for your baby and links to info sheets and other web-based resources. A great teaching tool for health professionals and resource for parents who want to make informed choices about topics such as co-sleeping, sleep training, and SIDS. The Infant Sleep Info Source (ISIS) was created by Durham University Parent-Infant Sleep Lab, with La Leche League, NCT, and the UNICEF UK Baby Friendly Initiative, funded by a grant from the ESRC (Economic and Social Research Council). Also endorsed by Association of Breastfeeding Mothers, Lactation Consultants of Great Britain, and the Breastfeeding Network.

About

Powerly

Features
Read full description

Powerly is a mental well-being app designed specifically for moms-to-be and new mothers, helping you navigate the journey of motherhood. Developed by experts at the University of Zurich, Switzerland, Powerly combines scientifically proven, evidence-based techniques—including reappraisal, mental imagery, gratitude, mindfulness, self-efficacy, and behavioral activation—to boost resilience, reduce stress, and support a strong bond with your baby. Being tested in rigorous clinical trials, Powerly provides personalized tools tailored to your unique needs. Please note that Powerly is currently available exclusively to study participants at the University of Zurich. Study participants have access to the app for a four-week period to explore its features and offer valuable feedback. Thank you for your interest, and stay tuned for updates on future availability! Medical Disclaimer This app is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because you are using this app.

Screenshots

Infant Sleep Info4 screens
Powerly4 screens

Verdict

The call

Infant Sleep Info and Powerly are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 2, 2026 and October 12, 2026 respectively.

ScorecardNo meaningful differences
Infant Sleep Info versus Powerly: the parameters behind the verdict, then further details
ParameterInfant Sleep InfoPowerly
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size71 MB40 MB
Age rating17+12+
DeveloperUniversity of DurhamPrzemyslaw Kuzia

In-app purchases

None

Infant Sleep Info

No in-app purchases

None

Powerly

No in-app purchases

Questions

Is Infant Sleep Info free?
Infant Sleep Info is free to download, with no in-app purchases.
Is Powerly free?
Powerly is free to download, with no in-app purchases.
Do Infant Sleep Info or Powerly have ads?
Neither Infant Sleep Info nor Powerly shows ads.
Which is updated more often, Infant Sleep Info or Powerly?
Infant Sleep Info ships an update every 4 months, and Powerly every 4 months. Most recently, Infant Sleep Info was updated on November 2, 2026 and Powerly on October 12, 2026.

Other comparisons