Pricing
Last updated: September 5, 2026
Lamp. is a collection of creative web apps for young children — drawing, music, marbling, counting and more. There are no ads and no tracking, and everything runs in the browser with nothing to install. Every app is free to use. The optional Plus plan unlocks extra features inside those apps and helps keep the service running.
Free
US$0
No account, no sign-in, no payment details.
- Every app, in full
- Works offline once loaded (PWA)
- Parental controls: break reminders, bedtime, hiding apps
- Drawings, music and other creations stay on your own device
Plus
US$3US$1.50 / month
Startup campaign — half price. There are still only a handful of apps, so until the collection is big enough, Plus is US$1.50 a month instead of the regular US$3. If you subscribe during the campaign you keep US$1.50 for as long as your subscription continues, even after the campaign ends.
Billed monthly, cancel any time. Taxes may be added at checkout depending on your country.
- Everything in Free, plus:
- Unlimited play time — turn off the automatic break
- Separate profiles for brothers and sisters
- Music: export your song as audio or MIDI, 15 rhythm pads, 5 tracks and 5 layers, extra instrument packs
- Suminagashi: extra ink colours, gold and silver leaf
- Ice Cream Shop: extra flavours, toppings and photo backgrounds
- Atelier: higher-quality image saving, multiple mixing palettes
- Clay: the glossy, metal and jelly materials
- Backup & restore: save your child's creations and settings to your own Google Drive and bring them back on another device (the data never passes through our servers). Needs a parent's Google account and free space in that account's Drive.
- Break signal: from your phone, tell the family's devices "break time in 5 minutes, for 15 minutes". Needs a parent's Google account; it reaches devices that are signed in to the same account and have Lamp. open. It is not a monitoring tool — anyone using a device on that account can cancel a signal.
- New Plus features in future apps, at no extra cost
Plus is available from the Plans page. A parent or guardian signs in there before opening Paddle's secure checkout.
How buying works
- A parent or guardian signs in with their own Google account on the Plans page. Children never sign in, and free use needs no account at all.
- Payment is handled by Paddle, acting as merchant of record. We never receive or store your card details.
- The plan is tied to that Google account, so it works on every device in the family — just sign in there too.
- The account and subscription pages sit behind a simple parental gate (a multiplication question) so that children do not reach them by accident.
Renewal, cancellation and refunds
- Plus renews automatically each month until you cancel.
- You can cancel at any time. Your plan stays active until the end of the period you have already paid for, and you are not charged again.
- 30-day money-back guarantee on every payment. If Plus is not for you, tell us within 30 days of any charge and we refund it in full — no questions asked. This applies to both the first payment and every renewal. See the Refund Policy for the details.
- To cancel or request a refund, use the link in your purchase receipt from Paddle, or email us at makoto.develop@gmail.com.
Questions
Email makoto.develop@gmail.com. We are a one-person operation based in Japan, so please allow a few days for a reply.