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Photography · head to head

NightCap vs RawTherapee

NightCap logo

NightCap

Photography

Long-exposure camera app for iOS aimed at night sky, star trail and light trail photography

From
On request
Rated
-
Full reviewWebsite
RawTherapee logo

RawTherapee

Photography

Open source raw developer with selectable demosaicing algorithms and floating point processing

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only RawTherapee has a free tier, so it costs nothing to try first.
  • Each has a real cost: NightCap it is iOS-only, so Android photographers cannot use it at all.; RawTherapee there is no catalogue, only a folder browser, so any library management, keywording or search has to happen in a separate application.
  • They diverge on capability: NightCap covers Manual exposure control, RawTherapee covers Selectable demosaicing.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which NightCap and RawTherapee actually diverge.

Attributes where NightCap and RawTherapee differ
AttributeNightCapRawTherapee
Starting priceOn requestFree
Pricing modelOne-time purchaseOpen source, no licence fee
Free tierNoYes
PlatformsiOSLinux, Windows, macOS

Identical on both: user rating (Not yet rated), category (Photography).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in NightCap

  • Manual exposure control
  • Star trail mode
  • Light trail mode
  • Northern lights mode
  • Meteor shower mode
  • Astro mode with stacking

Only in RawTherapee

  • Selectable demosaicing
  • Floating point pipeline
  • Local adjustments
  • Wavelet levels
  • Processing profiles
  • Colour management

What people use each for

The jobs each tool is most often brought in to do.

NightCap

  • An iPhone owner wanting star trail or Milky Way photos without buying a dedicated cameranot RawTherapee
  • A hobbyist photographing the northern lights who needs exposure control the stock camera app lacksnot RawTherapee
  • Someone capturing light trail shots of traffic or fireworks at nightnot RawTherapee
  • A photographer who prefers a one-time purchase app over yet another photography subscriptionnot RawTherapee

RawTherapee

  • Difficult raw files where the demosaicing algorithm visibly changes the result, such as fine fabric, foliage or architectural detailnot NightCap
  • Archive and restoration work where a free tool with strict colour management is preferable to a subscriptionnot NightCap
  • Photographers who want to understand and control each processing stage rather than accept a vendor renderingnot NightCap
  • Producing a high quality sixteen bit TIFF to hand to GIMP or another editor for compositingnot NightCap

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

NightCap

  • It is iOS-only, so Android photographers cannot use it at all.
  • Results are still limited by the physical sensor size and aperture of an iPhone, so it cannot match a dedicated mirrorless camera for astrophotography.
  • It requires a tripod or other stabilisation for most of its long-exposure modes, which is an extra cost and inconvenience beyond the app itself.
  • Its manual controls have a learning curve for someone used to a fully automatic point-and-shoot camera app.
  • As a niche app from a small developer, update cadence and long-term support are less predictable than a major platform vendor camera app.

RawTherapee

  • There is no catalogue, only a folder browser, so any library management, keywording or search has to happen in a separate application.
  • The default rendering is deliberately neutral and looks flat next to the camera JPEG, which means every user has to build their own processing profiles before the tool is pleasant to use.
  • Support for new camera models and for Fujifilm X-Trans sensors arrives later than in commercial converters because it depends on volunteer work and upstream library updates.
  • The interface presents several hundred controls across many tabs with little guidance about which ones interact, and the learning curve is measured in weeks rather than hours.
  • Batch export is slow compared with commercial converters and there is no GPU acceleration, so processing a large wedding shoot ties up the machine for a long time.

Pricing, plan by plan

NightCap

On request
  • NightCap$2.99/one-time
    • Full manual exposure control
    • All shooting modes included
    • No subscription

RawTherapee

Free
  • RawTherapeeFree
    • GPL licensed with no seat limit
    • All processing features included
    • Documentation and support through RawPedia and the community forum

Which should you pick?

Choose NightCap if

  • You need manual exposure control.
  • You work on iOS.
  • You also want star trail mode.
NightCap review

Choose RawTherapee if

  • You need selectable demosaicing.
  • You want to start without paying.
  • You work on Linux, Windows, macOS.
  • You also want floating point pipeline.
RawTherapee review

Questions people ask

Is NightCap or RawTherapee better?
Neither clearly leads. NightCap starts at On request and RawTherapee at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, NightCap or RawTherapee?
RawTherapee has a free tier; the other does not. Paid plans start at On request for NightCap and Free for RawTherapee.
Does NightCap or RawTherapee run on more platforms?
NightCap runs on iOS. RawTherapee runs on Linux, Windows, macOS.
Can I use RawTherapee for free?
Yes. RawTherapee has a free tier, so you can try it without paying. NightCap starts at On request.
What is NightCap best used for?
NightCap is most often used for an iphone owner wanting star trail or milky way photos without buying a dedicated camera, a hobbyist photographing the northern lights who needs exposure control the stock camera app lacks, someone capturing light trail shots of traffic or fireworks at night, a photographer who prefers a one-time purchase app over yet another photography subscription. Of those, an iphone owner wanting star trail or milky way photos without buying a dedicated camera and a hobbyist photographing the northern lights who needs exposure control the stock camera app lacks are not what RawTherapee is typically brought in for.
What can NightCap do that RawTherapee cannot?
NightCap covers Manual exposure control, Star trail mode, Light trail mode, Northern lights mode. RawTherapee covers Selectable demosaicing, Floating point pipeline, Local adjustments, Wavelet levels.

Answered from the vendors’ own pages

NightCap: Is NightCap still maintained?

Yes, it remains listed and updated on the App Store, including a rebuilt version offered free to existing customers.

RawTherapee: Does RawTherapee support Fujifilm X-Trans files?

Yes, but support arrived later than in commercial converters and results on fine detail still trail Capture One and Adobe on some bodies.

NightCap: Is it a subscription?

No, it is sold as a one-time purchase.

RawTherapee: Can it replace Lightroom entirely?

It replaces the develop side. It does not replace the catalogue, so you will need digiKam, darktable or something similar alongside it.

NightCap: Does it work on Android?

No, NightCap is iOS-only.

RawTherapee: Are my edits stored in the raw file?

No. Edits are written to sidecar profile files next to the raw, so originals are untouched and profiles can be copied between images.

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