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Best Form Filling Apps for iPhone (2026)

8 apps ranked S through F · · Ranked by AppTierList, computed, never sold · JSON

Fill and Sign Documents: eSign is the top-ranked of 8 form filling apps on iPhone, at S tier with 4.3/5 from 5,132 ratings.

  1. 1
    Fill and Sign Documents: eSignS
    Free + IAP · ★ 4.3 · 5,132 ratings · score 87
  2. 2
    Forma: PDF Document EditorA
    Free + IAP · ★ 4.7 · 26,153 ratings · score 81
  3. 3
    PDF Fill & Sign. Editor FillerB
    Free download · ★ 4.6 · 6,713 ratings · score 74
  4. 4
    PDF Hero - PDF Editor & ReaderB
    Free + IAP · ★ 4.6 · 10,318 ratings · score 72
  5. 5
    Form Filler: fill & sign formsC
    Free · ★ 4.6 · 31,730 ratings · score 69

What belongs in this list

Fill out forms and PDF documents on my phone and send them back.

Not here: a form creator alone; a document scanner alone; a general PDF viewer alone; a question answering chatbot alone; a workout form coach alone

How we pick

For this list we ask the App Store the same searches a person would, in several countries, and keep every app it returns. A model reads each app's listing and rejects the ones that only mention the use case. Every app that stays is scored out of 100 from four parts, each 0 to 100 and averaged with no weights: its App Store rating, how many people rated it, where the App Store itself ranks it for this list's searches, and how recently its current version shipped. An app showing Apple's Editors' Choice badge gets a fifth part of 100, which can only lift its score. Tiers follow fixed score bands: S from 90, A from 80, B from 70, C from 60, D from 50, F below. The list's leader is S if it scores 80 or more. On a list of 20 or more ranked apps, a tier from S to D takes in new apps only up to a quarter of the top 40: an app pushed out of a full tier falls to the next tier with room, and F takes the rest. An app already in a tier keeps its place while the tier is at most 2 apps over a quarter; past that, only the apps over that margin go down, lowest score first. Equal scores share a tier, and no app has a better tier than an app ranked above it. An app keeps its tier until its score passes the band edge by more than 1 point, or a full tier or the order above moves it. Only the top 40 of a list get a tier. Read the full method →

S
Fill and Sig…
A
Forma
B
PDF FillPDF Hero
C
Form FillerFastFieldDevice MagicAdd Text
D
None at D yet
F
None at F yet

Compare every app

  1. 1
    Fill and Sign Documents: eSignS
    Free + IAP · ★ 4.3 · 5,132 ratings · score 87 · best in class
  2. 2
    Forma: PDF Document EditorA
    Free + IAP · ★ 4.7 · 26,153 ratings · score 81 · excellent
  3. 3
    PDF Fill & Sign. Editor FillerB
    Free download · ★ 4.6 · 6,713 ratings · score 74 · good
  4. 4
    PDF Hero - PDF Editor & ReaderB
    Free + IAP · ★ 4.6 · 10,318 ratings · score 72 · good
  5. 5
    Form Filler: fill & sign formsC
    Free · ★ 4.6 · 31,730 ratings · score 69 · situational
  6. 6
    FastField: Field Service FormsC
    Free · ★ 4.6 · 17,193 ratings · score 69 · situational · provisional
  7. 7
    Device Magic: Get Mobile FormsC
    Free + IAP · ★ 4.5 · 3,729 ratings · score 64 · situational · provisional
  8. 8
    Add Text to PDF - Fill FormsC
    Free + IAP · ★ 5.0 · 4 ratings · score 63 · situational · provisional

New in the last 30 days

Questions people ask

What is the best form filling app for iPhone?
Fill and Sign Documents: eSign, S tier, ranked #1 of 8, rated 4.3 by 5,132 people.
Which form filling apps are free?
8 of 8 are free to download: Fill and Sign Documents: eSign (S), Forma: PDF Document Editor (A), PDF Fill & Sign. Editor Filler (B), PDF Hero - PDF Editor & Reader (B) and more. 5 of them sell in-app purchases. 2 report no in-app purchases.
Which form filling app has the best App Store rating?
Forma: PDF Document Editor at 4.7 from 26,153 ratings.
How many form filling apps reach S or A tier?
2 of 8. Tiers follow fixed score bands: S from 90, A from 80, B from 70, C from 60, D from 50, F below. The list's leader is S if it scores 80 or more. On a list of 20 or more ranked apps, a tier from S to D takes in new apps only up to a quarter of the top 40: an app pushed out of a full tier falls to the next tier with room, and F takes the rest. An app already in a tier keeps its place while the tier is at most 2 apps over a quarter; past that, only the apps over that margin go down, lowest score first. Equal scores share a tier, and no app has a better tier than an app ranked above it. An app keeps its tier until its score passes the band edge by more than 1 point, or a full tier or the order above moves it. Only the top 40 of a list get a tier.

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