IMGvsiOSWhich spelling fits?

Quick tell: IMG is a noun, iOS is a name, so they fill different roles in a sentence.

Which to use

“IMG” is a noun and “iOS” is a name - they look or sound alike but fill different roles in a sentence.

#29,690
“IMG” frequency rank
#5,888
“iOS” frequency rank
35578
confusion score

Side-by-Side Comparison

Feature IMG iOS
Definition An image. A mobile operating system (OS) created and developed by Apple Inc. exclusively for its hardware.

Letter map: IMG vs iOS

Shared letters muted; letters that set IMG and iOS apart highlighted. Shared run: 1.

3 ch
IMG
3 ch
iOS

Role in the sentence - IMG and iOS

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: IMG is anoun and iOSaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 35578, derived from the frequency rank of both members and their visual similarity.

IMG is recorded at frequency rank #29,690, classified as anoun, pronounced /ˈɪm(ɪ)d͡ʒ/. iOS is at rank #5,888, tagged as aname.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 35578, this pair ranks #310,767 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of IMG vs iOS

Shared letters: i. Private to "IMG": gm. Private to "iOS": os.

"IMG" · 3 letters · shape VCC  ·  "iOS" · 3 letters · shape VVC

Frequently Asked Questions

Is swapping "IMG" for "iOS" ever safe?
No - they are not even the same part of speech. "IMG" is a noun and "iOS" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "IMG" or "iOS" show up more?
"iOS" is the more common of the two: it sits at frequency rank #5,888 in our English list, against #29,690 for "IMG". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "IMG" and "iOS". Here's where to go from here.

  • Full dictionary entry for "IMG" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "iOS" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #310,767 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "IMG" and "iOS" also get mixed up with nearby pairs, the highest-scored neighbour is "IMG vs ith". Nearby pair

Confusion rank #310,767 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list