SynergyA Glapp alternative that checks your whole stack
Synergy is a Glapp alternative that logs peptides, GLP-1 medications, and supplements in one place and checks them against each other. Below: what Glapp states it does, what Synergy adds, and what Glapp has that Synergy does not. Every fact is from the app's own App Store listing, verified on the date shown.
We make Synergy. "Not stated" means the Glapp listing does not mention the feature, not that the app cannot do it. Corrections: [email protected].
What Glapp does, in its own words
Glapp describes a GLP-1 tracker with shot logging (dose, timing, injection site), weight tracking, an estimated medication-level curve, a side-effect, cravings, mood and energy log, supply inventory for vials and pens, nutrition tips, a research search over clinical trials and papers, and comparisons against peers and clinical-trial data.
What Synergy adds
Made for use, not for show
Log it. See where it went. See what it touches.
Supplements, peptides, and GLP-1s in one cabinet
Everything you take is logged in one place — the weekly shot, the peptides, and the supplements — instead of the shot in one app and the rest in a notes file.
Interaction checks across the whole stack
Synergy checks every item against every other and shows the pairs with documented interactions — synergies to lean into, cautions to watch — each with a plain-language, educational summary. Never a dose.
Scan a label to add it
Point the camera at a supplement label and the item is added, free on every plan.
Side effects, narrowed down
Reacting to something while taking four things? The side-effect analyzer works through the timeline and produces a record you can hand to a clinician.
What Glapp has that Synergy does not
An estimated medication-level curve, peer and clinical-trial comparisons, a lower annual price, and versions for Watch, Mac and Vision Pro. Synergy does not draw level curves and does not compare you to trial cohorts.
Side by side
| What the app does | Synergy | Glapp |
|---|---|---|
| Logs GLP-1 medications | Yes | Yes |
| Logs peptides beyond GLP-1s | Yes | Not stated |
| Logs supplements as a category | Yes | Not stated |
| Checks interactions between every item in the stack | Yes | Not stated |
| Scans a supplement label to add it | Yes, free | Not stated |
| Reconstitution and syringe-unit math on numbers you enter | Yes | Not stated |
| Estimated medication-level curve | No | Yes |
| Side-effect log | Yes, with a narrow-down-the-cause flow | Yes (side effects, cravings, mood, energy) |
| Community | Structured reviews and discussion | Peer and clinical-trial comparisons (not a forum) |
| AI assistant | Coach (Synergy Pro) | Research search over trials and papers |
| Supply inventory (vials and pens) | Yes | Yes |
| Data export | Yes, always, every plan | Not stated |
| Price | Free tier; Synergy Pro $9.99/mo or $79.99/yr | Free; Max $4.99/wk, $9.99/mo, $39.99/yr |
| Platform | iPhone | iPhone, Watch, Mac, Vision |
Verified 2026-09-21 against the US App Store listing for Glapp (Glapp Inc., v1.1.35) and Peptide GLP Supplement Synergy (PSSYN LLC, v1.0.2). See the full comparison.