Comparison

Gramms vs lullastar

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

Head to head
About

Gramms

Create personalized bedtime stories for children with AI-generated narratives and warm, grandparent-like narration. Features voice cloning for family members to narrate stories in their own voice. Designed for children aged 3-10, it offers a privacy-first, ad-free experience.

Highlights
  • AI-generated personalized stories
  • Grandparent-like voice narration
  • Voice cloning for family narration
  • Child as the hero in stories
  • Age-appropriate content (3-10)
  • Privacy-first design
  • Offline playback
Features
Read full description

Tell Gramms what tonight's story should be about. A few minutes later your child is the hero of it, read aloud in a warm voice, with each word warming as it's spoken so they can follow along. And tomorrow night carries on from tonight. The next chapter opens the same book — same world, same characters, the thread still hanging where you left it. Chapter five still knows what happened in chapter one. A VOICE THEY KNOW Grandma is four time zones away. Dad is away for work. Gramms can read the stories in their real voice: they record a few seconds in the app, or you bring a recording you already have. It becomes a private reading voice that reads only your child's stories, and you can let it go whenever you like. HOW A NIGHT GOES - Type what tonight's story is about — a lost mitten, a brave dinosaur, the first day at a new school - A story comes back with your child's name inside it, read aloud, with artwork of its own - The words warm one at a time as they're read; tap any word to jump there - "Stop after a while" lets the story fade down gently instead of cutting off - Keep tonight's story on the phone and it plays with no signal at all - Leave an idea for what happens next, and the next chapter picks it up BUILT FOR THE END OF THE DAY Nothing interrupts a story once it's playing. No prompts, no pop-ups, nothing that would wake a child who is almost asleep. Stories are written for ages three to ten, and the telling changes with the hour: slow and quiet at bedtime, a proper ending in the afternoon. Stories can be told in English, Spanish, French, German, Italian or Portuguese. WHAT IT COSTS Three new stories a week are free, and the first loved one's voice is free to hear. Everything you have already made stays yours to play, always, at no cost. Gramms AI Premium lifts the weekly limit and lets you add more voices. - Monthly — $5.99 per month, after a one-week free trial - Yearly — $49.99 per year, after a one-week free trial Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the period ending. You can manage or cancel it in your Apple Account settings. Any unused part of a free trial is forfeited if you buy a subscription. HOW THE AI WORKS, PLAINLY OpenAI writes the stories and reads them aloud. We share your child's first name, their age, and your story idea — nothing else. If you bring a loved one's voice into Gramms, OpenAI listens to that recording first, to be sure a grown-up made it. Then our voice partner Cartesia makes the reading voice from it. OpenAI also listens to each finished story, so the words can light up in time with the reading. Nothing about a voice reaches either of them unless you choose to add one, and you can let a voice go at any time. You can remove any of it, and your whole account, from inside the app. Terms of Use: https://gramms.ai/terms Privacy Policy: https://gramms.ai/privacy

About

lullastar

Features
Read full description

Be there at bedtime, every single night. lullastar creates personalized AI bedtime stories starring your child — by name, with their pet, their favorite themes, and their world woven into every tale. Simply tell us about your child once. Each night, a brand new story appears — just for them. FULLY PERSONALIZED Choose from dragons, fairies, dinosaurs, space, ocean, animals, and more. Add a pet. Add a best friend. Every detail makes the story richer and more magical. BEAUTIFULLY NARRATED Every story is narrated by Aria, lullastar's warm AI voice — unhurried, gentle, and perfectly paced for little ones winding down. THE RIGHT LENGTH, EVERY NIGHT Choose Quick (3 min), Medium (5 min), or Long (8 min) — whatever bedtime calls for. A LIBRARY THAT GROWS Every story is saved. Replay favorites any night. Stories are perfectly tuned for ages 2–8. SWEET DREAM ENDINGS Every story closes with a gentle sweet dream prompt to guide little eyes toward sleep. SUBSCRIPTION lullastar is free to try — 3 stories on us, no credit card required. Subscribe to start a 7-day free trial, then $9.99/month or $69.99/year. Payment is charged to your Apple ID account. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel in your Apple ID account settings. Privacy Policy: https://lullastar.com/privacy — Terms of Use: https://lullastar.com/terms

Screenshots

Gramms4 screens
lullastar4 screens

Verdict

The call

The clearest difference is device support: lullastar at 3 against Gramms's 1. On price, ads, in-app purchases and iOS requirement 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. Gramms sells 2 in-app purchases, starting at $5.99 per month and lullastar sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Gramms versus lullastar: the parameters behind the verdict, then further details
ParameterGrammslullastar
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size69 MB78 MB
Age rating4+4+
DeveloperSmartCue IncBe Wonderful Studio LLC

In-app purchases

2 purchases

Gramms

Subscriptions2
  • Gramms Premium7 Days trial$5.991 Month
  • Gramms Premium7 Days trial$49.991 Year
2 purchases

lullastar

Subscriptions2
  • Lullastar Premium — Monthly7 Days trial$9.991 Month
  • Lullastar Premium — Annual7 Days trial$69.991 Year

Questions

Is Gramms free?
Gramms is free to download, with in-app purchases available.
Is lullastar free?
lullastar is free to download, with in-app purchases available.
Do Gramms or lullastar have ads?
Neither Gramms nor lullastar shows ads.

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