Identify the historical iFitness
A February 2009 Macworld review identifies iFitness from Medical Productions as an exercise reference with logging features. That record helps distinguish the early iPhone app from other products using similar fitness names. It does not confirm current availability, compatibility, or continuity of the original service.
A library and a log solve different problems
An exercise library presents information, while a log records what someone did. Combining them can feel convenient, but it does not make the software a personal trainer or establish that a suggested activity is appropriate for a particular person.
This guide concerns software evaluation and historical context. It does not reproduce old exercise instructions, prescribe a routine, or validate medical or fitness claims made in a period review.
Make records understandable later
For a workout journal, consider how clearly it records dates, units, exercise names, and personal notes. A number without its unit or context can become misleading when revisited. If an activity name changes between versions, check whether older entries remain understandable.
Before moving important records into a current app, try creating a sample entry, correcting a mistake, and exporting the result. Look at the exported file in another program. An export button is only useful if the information you need actually survives the transfer.
Review access and privacy
Fitness records can be personal. Check whether an account is required, what sharing is enabled, and how records can be deleted or retrieved. Do not assume a long-running app name guarantees that your old data will be available forever.
The useful legacy of iFitness is the idea of carrying reference material and a journal together. Evaluate a modern replacement by clarity, data portability, and appropriate guidance rather than a promised transformation.