Nextsode reads TV Time's own data export as-is — shows, seasons, episodes and watch dates. It is free, has no ads, and everything you bring in can leave again in a single file.
Signing up takes a minute. You can export everything as JSON or CSV whenever you like — and the JSON file imports back in.
Netflix and Letterboxd exports go through the same screen. If a date format is ambiguous, we leave the date empty rather than guessing the wrong day — and we say so in the summary.
We only filled a competitor cell when we could verify it from their own site. Everything we couldn't verify is left as “—”, not guessed. If you see something wrong here, write to us and it gets corrected.
| Nextsode | Trakt | Serializd | Simkl | |
|---|---|---|---|---|
| Spoiler-safe episode rooms | Yes — enforced on the server | — | — | — |
| Season heatmap | Yes | — | — | — |
| Watch DNA / taste breakdown | Yes | — | — | — |
| Import sources | TV Time · Netflix · Letterboxd · Nextsode | — | — | — |
| Export | JSON + CSV, and the JSON imports back | — | — | — |
| Price | Free, no paid tier | Free + paid VIP tier | — | Free + paid VIP tier |
| Ads | None | — | — | — |
| Interface languages | 8 | — | — | — |
| Platforms | Web + iOS (TestFlight) | — | — | — |
Comparison last checked: 2026-08-07
Trakt is the most established of the four, with a large API and a whole ecosystem of third-party apps built on it — if automatic scrobbling matters to you, look there first. Serializd is review- and diary-first for TV, which is lovely if you like writing. Simkl is known for how many places it can import from. Nextsode's bet is different: spoilers designed into the architecture rather than bolted on, visual feedback like heatmaps and Watch DNA, and eight languages from day one. Use whichever fits — but whatever you pick, make sure you can get your data back out.
Free, no ads. Bring the file, keep the history.
Signing up takes a minute. You can export everything as JSON or CSV whenever you like — and the JSON file imports back in.