Synergy vs Similia — a feature comparison

Synergy Homeopathic and Similia represent two different theories of what homeopathic software should be. Synergy — now centred on the Synergy Viva platform, with MacRepertory and ReferenceWorks maintained as a separate legacy line — is a desktop research environment with three decades of lineage, sold per seat with edition-based pricing that is not publicly listed. Similia is a web-based subscription platform with a permanent free tier, published prices, and an AI-assisted workflow layer.

ReferenceWorks-anchored researchers and offline-first record keepers should choose Synergy. Nearly every other profile — multi-device practitioners, students, first-time buyers, AI-curious case-takers — reads better on Similia, starting from the free tier.

The eight-dimension table

Where Synergy wins

ReferenceWorks is the single strongest argument in the Synergy column. Its searchable corpus spans Allen, Hering, Kent, Clarke, Boger, Boenninghausen, Vithoulkas, Sankaran, and a long roster of contemporary authors, cross-cited into the repertory view — a research instrument practitioners and teachers have built entire verification workflows around. Similia's Materia Medica Search with semantic mode across owned sources (classics free; Murphy, Vermeulen, Scholten, Mangialavori, Pitt, Griffith and others by edition or add-on) is the closest analogue, and for natural-language symptom queries it is arguably easier to use. Corpus-for-corpus, though, the ReferenceWorks library remains broader.

Synergy's second advantage is structural: it is desktop software with local files. It works with no internet connection, in a clinic basement or on a flight, and the patient archive sits on hardware the practitioner physically controls. Similia requires connectivity by design. Practitioners whose data-control posture or working environment makes that decisive should weight this dimension above 10% — the desktop vs cloud trade-off is worth reading on its own terms.

Third, longevity of muscle memory. A MacRepertory user of twenty years operates the graph views and family overlays at reflex speed; no migration preserves that.

Where Similia wins

The AI dimension is not completely one-sided, but it favours Similia substantially. Synergy Viva ships Synergy Genie — marketed as a homeopathically trained AI assistant — as a separate add-on (€403 plus token top-ups, approximately 300–400 queries per $10). Similia's AI is built into the subscription: semantic rubric search on the free tier; Pro adds Notes to Rubrics (paste or OCR-upload consultation notes, receive suggested rubrics), Photos to Rubrics, Live Mode for typed notes, Live Audio Mode (Beta) that transcribes a consultation and proposes rubrics in real time, and AI-extracted Case Timelines — all metered through an AI-credits budget of 100 credits per Pro renewal, with credit packs available. Both vendors caution that AI suggestions require clinical review before prescribing.

Platforms and pricing follow a similar pattern. Similia runs on any modern browser — desktop, iPad on a home visit, phone in a corridor. MacRepertory and ReferenceWorks are macOS and Windows desktop applications; Synergy Viva's platform requirements are not publicly documented on the vendor's site. Similia's prices are public — Pro Base $19.99 USD/mo, Pro Murphy or Pro Complete $29.99 USD/mo, Pro Saine $26.99 USD/mo, annual billing saving roughly a month, student discounts, 14-day first-time trial — while Synergy's editions (Essential/Foundation/Professional/Visionary/Veterinary) carry no publicly listed price and require a quote or sales contact. Similia's permanent Free tier (classic repertories and materia medica, semantic search, 3 cases and 3 analyses per month) means evaluation has zero cost and no sales conversation.

On case management the products are closer than the marketing suggests: Cara Pro is mature and local; Similia's Pro tier adds multi-device sync, case sharing with colleagues, folders, and customisable DOCX/PDF prescription export. The differentiator is whether the practitioner's week involves more than one machine.

Reader-type recommendation

Verdict

For ReferenceWorks-anchored researchers, Synergy ranks first. For multi-device, student, first-time, or AI-evaluating practitioners, Similia ranks first — and the zero-friction test is to start on the free tier and elect the 14-day Pro trial if the limits bite.

References

Synergy Homeopathic (2026) Synergy Viva product pages, Synergy Genie add-on listing, and MacRepertory/ReferenceWorks support pages, https://www.synergyhomeopathic.com, fetched 2026-05-17 and 2026-06-18.

WholeHealth Now (2026) Distributor pages for the Synergy Homeopathic line, https://www.wholehealthnow.com, fetched 2026-05-17.

Similia (2026) Knowledge base — Pricing and Subscription FAQ, Free vs Pro, AI credits, Live Audio Mode, Materia Medica search, security, https://similia.crisp.help/, fetched 2026-04-22 and 2026-05-17.