iSPEX vs Climate analogues
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSPEX
This educational tool analyzes light entering a smartphone, breaking it down by spectrum and polarization. It requires a specific hardware add-on to function.
- Spectrum analysis
- Polarization analysis
- Hardware add-on integration
- Educational tool
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iSPEX is a hardware add-on for smartphones that analyzes the light that enters it in terms of its spectrum and its polarization.
Climate analogues
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What will the climate of your city look like in the future? Find where this future climate already exists today, to figure out consequences of climate change. Choose which weather parameter to consider: Temperature, precipitiations, wind… and visualize the results on a map.
Screenshots
Verdict
The clearest difference is update cadence: Climate analogues at every 4 weeks against iSPEX's every 2 months. Climate analogues also leads on device support (4 vs 2) and iOS requirement (13.0 vs 15.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iSPEX ships an update every 2 months, Climate analogues every 4 weeks. The most recent releases landed on September 28, 2026 and October 8, 2026 respectively.
| Parameter | iSPEX | Climate analogues |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | DDQ | Université de Genève |
In-app purchases
iSPEX
No in-app purchases
Climate analogues
No in-app purchases
Questions
Is iSPEX free?
Is Climate analogues free?
Do iSPEX or Climate analogues have ads?
Which is updated more often, iSPEX or Climate analogues?
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