StockFit
iPhone · Fitness tracking
A workout tracker that prices your training like a market. Lifts trade as stocks, muscle groups as ETFs, and everything you log sums into a single Strength Index.
- Strength Index
- Live workout logging
- Works offline
Summer Labs LLC
Software that makes progress impossible to miss.
Summer Labs is an independent studio building native iOS apps. We make a few focused tools, we make them work offline, and we keep your data on your phone.
What we make
RiskCalc
iPhone · Trading risk calculator · Free
Position sizing for stock and options traders. Set what a trade may cost you, enter your entry and stop, and get the exact share or contract count, R targets, and a journal that keeps score in R.
- Position sizing
- Options contracts
- Trade journal
How we build
How we build, and what we will not trade away.
01
On-device by default
We start from no server, no accounts, no analytics SDKs and no ad networks, and we have not needed to leave that yet. It is the architecture rather than a policy bolted on afterwards. If an app of ours ever has to send something, we will tell you what and why, in plain language, before it does.
02
Native, not wrapped
Written in Swift and SwiftUI against the current platform, so they feel like they belong on the phone: real Live Activities, real widgets, real Lock Screen behavior, and launch times that respect your time.
03
Few apps, finished properly
We would rather ship a few apps whose details hold up under daily use than many that demo well. The unglamorous parts (what happens when you background mid-workout, what a calculator does with a sub-penny price) are the work.
Contact
One address, and a person on the other end.
Support questions, bug reports, press, or anything else: email us. We read everything and aim to reply within two business days.