Gramms App Review: $5.99/mo, iOS-Only, Audio Stories in Grandma's Voice
I built Gramms — here's where it loses too. iOS-only, $5.99/mo unlimited (3 free/wk), 30-sec voice clone, audio-only. Honest review from the founder.
I built this app. I will be transparent about that upfront, and I will tell you what it does not do as clearly as what it does.
Gramms is an iOS app that generates personalized AI bedtime stories for children ages 3 to 10. Every story names the child, reflects their age and interests, and is narrated with warmth. Three stories per week are free. Unlimited stories are $5.99 per month.
That is the short version. Here is the longer one.
What Gramms Actually Does
You create a child profile: name, age, favorite things (dinosaurs, space, princesses, whatever). When you tap “Create Story,” Gramms generates a new story in about 60 to 90 seconds. The child is the hero. The story is different every time.
Stories run about 3 to 5 minutes. They are narrated by an AI voice trained for warmth and expressiveness, not the flat TTS voice you have heard on other apps.
The feature that is different from any other app in this category: voice cloning. A grandparent (or parent, or anyone) records their voice for about 30 seconds in the app. From that point on, every story plays in that voice. Not a voice “inspired by” them. Their actual voice, narrating a story about your child, every night.
There is also AI-generated cover art for every story: DALL-E illustrations that match the story’s setting and characters.
What Real Parents Say
These are unedited excerpts from App Store reviews as of March 2026. Seven reviews, all five stars.
“My daughter loves hearing herself as a protagonist in new adventures everyday and now even narrated through mumma and papa’s voice in their absence.” — Rohan Sabnis, India
“Hearing his name in the story made him instantly interested, and bedtime felt a lot smoother. The narration is soothing and app is not meant for visual stimulation, which I really liked.” — Sanjali Jain, India
“Both of my daughters were excited to build their own unique stories, listen to them (without me reading them a book for a change), and build something new the next time.” — P Wells, USA
“I tried Gramms yesterday for my little one and honestly, it’s really lovely.”
“If I could give 10 stars I would.” — Tbazz1868, USA
Seven reviews is not a large sample. The app launched in late 2025 and is early. That is honest.
What It Costs
- Free: 3 stories per week, no credit card, no time limit
- Premium: $5.99 per month, unlimited stories and voice cloning access
No per-story credits. No surprise annual lock-in. One flat price.
For comparison: Moshi Kids (the leading competitor) is $49.99 per year ($4.17 per month) but has no personalization and no voice cloning. Sleepytale offers voice cloning at $17 per month. At $5.99 per month for unlimited personalized stories in a grandparent’s voice, the pricing is the most accessible in the category for the features it includes.
What It Does Not Do
I will list this plainly.
Android: Gramms is iOS only. If you are on Android, it will not work. There is no timeline I can share for Android.
Multiple voice variety: The app narrates in one voice (the default AI voice) or in the cloned family voice. There is no library of narrator characters to choose from, unlike some competitors.
Read-to-me with the parent: Gramms generates and narrates the story. It is designed for the app to do the telling, not to be a teleprompter while you read aloud. That is intentional (it is for moments when you are not there, or when you have already read three books and need backup). But if you want to be the reader, that is not what this is.
No classic literature worlds: Oscar Stories lets children explore Alice in Wonderland or The Jungle Book. Gramms generates original stories only.
No games or meditations: Gramms does one thing: bedtime stories. If you want sleep sounds, breathing exercises, or interactive elements, look at Moshi or Calm Kids.
Who It Is For
Gramms works best for:
- Families where a grandparent lives far away. The voice cloning turns a weekly FaceTime call into a nightly bedtime ritual. The grandparent records once. Bedtime happens every night.
- Parents who travel for work. A dad who misses bedtime 3 nights a week can record his voice and still be there.
- Parents with kids who need the story to be about them. Some children tune out generic stories the moment they realize they are not the hero. Gramms fixes this.
- Families who have exhausted their book library. Unlimited new stories beats re-reading the same five books for the eighteenth time.
Gramms is not ideal if you need Android support, want pre-recorded narration from celebrities or professional voice actors, or primarily want sleep sounds and meditation rather than stories.
The Honest Bottom Line
The free tier is genuinely free: three stories per week with no credit card and no expiry. That is enough to evaluate whether it works for your family before spending anything.
If voice cloning is not your use case and you just want an unlimited story generator, $5.99 per month is a reasonable price for unlimited AI-generated, personalized bedtime stories.
If you have a grandparent, parent, or family member who misses bedtime, and that person’s voice matters to your child, there is no other app that does this.
Try Gramms free: 3 stories per week, no credit card required
Robin Singhvi is the founder of Gramms AI. He built it because his own family lives across three time zones and bedtime kept getting missed.
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Frequently Asked Questions
Is Gramms AI free?
Yes. Three stories per week are free with no credit card and no time limit. Unlimited stories are $5.99 per month.
Is Gramms on Android?
No. Gramms is currently iOS only.
How does Gramms voice cloning work?
A grandparent or family member records 30 seconds of their voice in the app. The app uses AI to create a voice model. Every story is then narrated in that person's voice.