Travel tools
SkyStamp
iPhone
A private airport passport for recording visit days, mapping airports, seeing travel patterns, sharing milestones, and testing aviation knowledge.
Website only · no verified App Store listing
Useful apps, built with a point of view.
Independent iPhone and iPad tools for travel, everyday planning, personal wellness, creative expression, and discovery.
Featured apps
View all appsFind the right app for the moment.
Travel, planning, wellness, creativity, and discovery — with direct routes to official product and publisher listings.
Wellness
Cortisol Aware
iPhone + Apple Watch
A private personal-baseline wellness coach that turns optional health and routine signals into one useful action and patterns over time. It does not measure or estimate cortisol.
Coming soon Website only · no verified App Store listing
Coming soon
Travel tools
Currency DJ
iPhone
A tactile currency converter for 160 currencies with a DJ-style scrub wheel, live rates, cached rates, and no account required.
Verified App Store listing
Travel tools
Price Tag FX
iPhone
A price-tag scanner for travelers that reads foreign store labels, translates key pricing terms, and converts detected prices.
Verified App Store listing
Planning
RenewalKit
iPhone + iPad
A privacy-first reminder for passports, IDs, visas, licenses, memberships, warranties, and renewals.
Verified App Store listing
Creativity
Anitalk
iPhone + iPad + Messages
Anitalk turns typed words, symbols, and emoji into animated messages that recipients can view without installing Anitalk.
Verified App Store listing
Discovery
MovieDNA
iPhone + iPad
Private, ad-free movie recommendations with taste profiles, Watch Together compatibility, watchlists, and personal movie journaling.
Concept preview Website only · no verified App Store listing
Concept preview
Travel tools
Vintokyo
iPhone
A Tokyo vintage shopping guide with curated shops, map-first discovery, trip planning, offline access, and neighborhood browsing.
App Store unavailable
Pick the travel tool for the moment.
Choose by what is in front of you: a number, a price tag, or a Tokyo neighborhood.
Spin live rates.
Currency DJ- Best for
- Quick manual currency conversion
- How you start
- Enter an amount or use the scrub wheel
- Works away from a signal
- Cached recent rates
Scan a price tag.
Price Tag FX- Best for
- Reading and converting a foreign store label
- How you start
- Camera scan or manual amount
- Works away from a signal
- Manual conversion remains useful
Plan vintage stops in Tokyo.
Vintokyo- Best for
- Curated shop discovery and trip planning
- How you start
- Map and neighborhoods
- Works away from a signal
- Offline access
Privacy is a product decision.
The catalog explains what each app needs, what stays on device, and where to read the product-specific policy.
No account where it is not needed
Access core features without creating an account.
On-device records stay personal
RenewalKit keeps expiration records and reminders on device; other apps have their own product-specific policies.
Analytics only after you choose
Usage analytics are off by default and never used to profile you.
emonster inc. — independent software studio since 1997.
We maintain official product sites for each app and publish direct App Store links under our verified publisher profile.
View on the App StoreLooking for games?.
emonster.games is the separate home for current game releases.
Open emonster.gamesFrequently asked questions.
Which emonster app fits my trip?
Use Currency DJ for quick manual conversion, Price Tag FX for foreign store labels, and Vintokyo for vintage shopping discovery in Tokyo.
Are these the official app links?
Yes. Verified App Store links use emonster's publisher attribution. Website-only products are clearly marked when no live listing can be verified.
Why do product guides live on separate sites?
Each product domain owns setup, support, and deep-use guidance. This hub stays focused on comparison and discovery.
Does emonster.app load analytics before consent?
No. Google Analytics is requested only after explicit opt-in, and the privacy control lets you change that choice.