For Hey Mantle & SASI users
Your App Store intelligence doesn’t have to disappear with Mantle.
Mantle is shutting down, and SASI — your keyword tracking, rankings and competitor data — goes with it. Letsmetrix is the dedicated home for it: read-only, no code, live in minutes, with the history already tracked.
- Actively built, here for the long term
- No code, read-only, no billing changes
- Free to start

Everything you tracked in SASI. None of the lock-in.
Letsmetrix has been monitoring the public Shopify App Store every day — rankings, keywords, reviews and competitors. So you’re not starting from a blank chart the day Mantle goes dark.
Keep your ranking history
Keyword and rank data is a time series — once tracking stops it’s gone for good. We already hold the public history, so your record doesn’t restart at day one.
Set up in minutes
No SDK to embed, nothing to re-architect. We read public App Store data and connect read-only — your billing stays exactly where it is.
Built to stay
App Store intelligence is the whole product, not a feature bolted onto a billing platform. It’s what we ship, support and improve every week.
“Where do I move before the data is deleted?”
Mantle is winding down its dashboard, APIs and data. Letsmetrix isn’t going anywhere — and the sooner you start, the shorter the gap in your history.
We’re a focused, dedicated Shopify App Store intelligence product with a public changelog and a roadmap that ships continuously. Move now and we backfill from the public history we already track.
Letsmetrix vs. Hey Mantle
Mantle was an all-in-one billing & ops platform that absorbed SASI’s App Store analytics in 2024. With the wind-down, that intelligence layer is what disappears — and it’s exactly what Letsmetrix is built for.
Mantle wind-down and SASI status per Mantle’s published wind-down notice (heymantle.com). Migrate before data deletion to keep the gap in your history short. Read the full Hey Mantle shutdown & alternatives guide.
The Mantle migration stack
Letsmetrix replaces the intelligence layer — here’s where the rest goes.
Mantle bundled billing, support, email, affiliates and App Store analytics into one platform. Letsmetrix is the dedicated home for the analytics. For everything else Mantle did, here’s the stack we recommend for Shopify app founders.
Partner slots are recommended tool categories, not endorsements — pick the vendor that fits your stack. Letsmetrix owns the App Store intelligence layer end to end.
Free to use — every feature, no plan to pick.
Mantle priced by Monthly Tracked Revenue, so the bill climbed as your app grew. Letsmetrix is free to use right now — full keyword, competitor and review tracking, no tiers and no card. Your cost never rises just because your revenue did.
No tiers, no card, no Monthly-Tracked-Revenue billing. Every part of the toolkit is free to use right now.
Get your App Store intelligence back in three steps.
Create your account
Sign up free — every feature is included and there’s no card required to start.
Add your apps & keywords
Point Letsmetrix at your apps and the keywords you tracked in SASI. No SDK, nothing to install.
Optimize your app
Use your keyword, competitor and review insights — plus the free ASO audit — to sharpen your listing and climb the App Store rankings.
The full Shopify App Store intelligence toolkit.
Questions from Mantle users
Frequently asked questions
Bring your App Store intelligence home.
Read-only, live in minutes, free to use — from a team that’s here to stay.
Free to use · no card required · live in minutes
